3.7522…=(3又
3.757272…=(3又833/1100)
计算过程:
(1)
=3+0.75+0.0022....
=3+3/4+2/900
=3+(3×225)/(4×225)+2/900
=3+675/900+2/900
=3+677/900
=(3又677/900)
(2)3.757272…
=3+0.75+0.007272....
=3+3/4+72/9900
=3+3/4+8/1100
=3+(3×275)/(4×275)+8/1100
=3+825/1100+8/1100
=3+833/1100
=(3又833/1100)