##### 



Exhibit 7

GRUMA, S.A. DE C.V. AND SUBSIDIARIES

Computation of ratio of earnings to fixed charges
Thousands of pesos of purchasing power as of December 31,2002)

|                                         |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |      |  |           |         |  |  |          |         |  |  |           |         |  |  |           |         |  |  |           |         | 
|---------------------------------------- | ------------------------------------- |  | ---- | --- |  |  | ----------------------- | ------- | ----------------------- |  | ------- | ------- | ---- |  | --------- | ------- | ---- |  | --------- | ------- | ---- |  | --------- | ------- | ---- |  | --------- | ------- |  |  | -------- | ------- |  |  | --------- | ------- |  |  | --------- | ------- |  |  | --------- | ------- | 
|                                         |                                       |  |      |     |  |  | Mexican GAAP            |         | US GAAP                
|                                         |                                       |  |      |     |  |  | Year ended December 31, |         | Year ended December 31,
|                                         |                                       |  |      |     |  |  |                         |         |                        
|                                         |                                       |  |      |     |  |  | 1998                    |         | 1999                    |  | 2000    |         | 2001 |  | 2002      |         | 1998 |  | 1999      |         | 2000 |  | 2001      |         | 2002
|                                         |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |     
|Income before income tax and other items |                                       |  |      |     |  |  | 656,826                 |         |                         |  | 1,376   |         |      |  | 386,389   |         |      |  | 747,840   |         |      |  | 1,001,673 |         |      |  | 659,614   |         |  |  | (371,075 | )       |  |  | 193,186   |         |  |  | 752,602   |         |  |  | 881,416   |        
|Add:                                     |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |      |  |           |         |  |  |          |         |  |  |           |         |  |  |           |         |  |  |           |        
|                                         | Interest expense                      |  |      |     |  |  |                         | 464,576 |                         |  |         | 708,342 |      |  |           | 835,191 |      |  |           | 670,183 |      |  |           | 566,649 |      |  |           | 534,544 |  |  |          | 762,809 |  |  |           | 885,830 |  |  |           | 682,905 |  |  |           | 582,698 | 
|                                         | One-third of operating rental expense |  |      |     |  |  |                         | 138,206 |                         |  |         | 136,016 |      |  |           | 145,404 |      |  |           | 125,793 |      |  |           | 122,235 |      |  |           | 146,674 |  |  |          | 138,331 |  |  |           | 149,114 |  |  |           | 122,570 |  |  |           | 119,558 | 
|                                         |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |      |  |           |         |  |  |          |         |  |  |           |         |  |  |           |         |  |  |           |        
|Earnings                                 |                                       |  | (a   | )   |  |  | 1,259,608               |         |                         |  | 845,734 |         |      |  | 1,366,984 |         |      |  | 1,543,816 |         |      |  | 1,690,557 |         |      |  | 1,340,832 |         |  |  | 530,065  |         |  |  | 1,228,130 |         |  |  | 1,558,077 |         |  |  | 1,583,672 |        
|Fixed charges                            |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |      |  |           |         |  |  |          |         |  |  |           |         |  |  |           |         |  |  |           |        
|                                         | Interest expense                      |  |      |     |  |  |                         | 464,576 |                         |  |         | 708,342 |      |  |           | 835,191 |      |  |           | 670,183 |      |  |           | 566,649 |      |  |           | 534,544 |  |  |          | 762,809 |  |  |           | 885,830 |  |  |           | 682,905 |  |  |           | 582,698 | 
|                                         | Capitalized Interest                  |  |      |     |  |  |                         | 40,114  |                         |  |         | 7,070   |      |  |           | 6,113   |      |  |           |        |      |  |           |        |      |  |           | 35,121  |  |  |          | 6,960   |  |  |           | 6,381   |  |  |           |        |  |  |           |        | 
|                                         | One-third of operating rental expense |  |      |     |  |  |                         | 138,206 |                         |  |         | 136,016 |      |  |           | 145,404 |      |  |           | 125,793 |      |  |           | 122,235 |      |  |           | 146,674 |  |  |          | 138,331 |  |  |           | 149,114 |  |  |           | 122,570 |  |  |           | 119,558 | 
|                                         |                                       |  |      |     |  |  |                         |         |                         |  |         |         |      |  |           |         |      |  |           |         |      |  |           |         |      |  |           |         |  |  |          |         |  |  |           |         |  |  |           |         |  |  |           |        
|Total Fixed charges                      |                                       |  | (b   | )   |  |  | 642,896                 |         |                         |  | 851,427 |         |      |  | 986,708   |         |      |  | 795,976   |         |      |  | 688,884   |         |      |  | 716,339   |         |  |  | 908,101  |         |  |  | 1,041,325 |         |  |  | 805,475   |         |  |  | 702,256   |        
|Ratio of earnings to fixed charges       |                                       |  | (a)/ | (b) |  |  | 1.96                    |         |                         |  | 0.99    |         |      |  | 1.39      |         |      |  | 1.94      |         |      |  | 2.45      |         |      |  | 1.87      |         |  |  | 0.58     |         |  |  | 1.18      |         |  |  | 1.93      |         |  |  | 2.26      |        
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