先化简下列各比再求比值2.1:14,0.25:7分之16 ,3分之2:6分之5

2024-11-16 00:35:57
推荐回答(1个)
回答1:

(1)2.1:14=21:140=0.15
(2)0.25:(16/7)=1/(64/7)=7/64=0.4375
(3)2/3:(5/6)=4/5=0.8