来自金琪的问题
7分之2加9分之7等于?1减(9分之5减8分之3)等于?
7分之2加9分之7等于?1减(9分之5减8分之3)等于?
5回答
2020-10-28 13:47
7分之2加9分之7等于?1减(9分之5减8分之3)等于?
7分之2加9分之7等于?1减(9分之5减8分之3)等于?
2/7+7/9
=18/63+49/63
=67/63
=1又4/63
1-(5/9-3/8)
=1-13/72
=59/72
24乘17分之12等于?8分之1加0.375等于?
24×12/17
=288/17
=16又16/17
1/8+0.375
=1/8+3/8
=1/2
最后一题0.75加12分之5等于?
0.75+5/12
=3/4+5/12
=7/6
=1又1/6