質問: dividing with decimals how to find the answers of... 1.21.6 d 4.3 2.25.4 d 5.4 3.3.512 d 7.9 4.7.24 d 4.5 (d=dividing)
回答: (1) 21.6/4.3 = 216/43 = 5.0 5.02 43)216 215 1.0 0 1.00 86 14 (2) 25.4/5.4 = 254/54 = 4.70 4.70 54)254 216 38.0 37.8 0.20 0 20 (3) 3.512/7.9 = 35.12/79 = 0.4 (4) 7.24/4.5 = 72.4/45 = 1.6