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0.375乘5又8分之3减8分之3加15.625乘8分之3

15又8分之5+(2.625+1又6分之5-3分之1) =15+5/8+2+5/8+1+5/6-2/6 =17+10/8+1/2 =17+1+1/4+2/4 =18+3/4 =18又4分之3

0.375就是3/8

等于15÷24, 也等于35/56, 就是这样写。

解:依题意得算式, 0.625×15分之4 =1000分之625×15分之4 =8分之5×15分之4 =6分之1 即0.625×15分之4=6分之1

10-15分之7-0.625-8分之3 =10-(7/15+5/8+3/8) =10-1又7/15 =8又8/15

=5/8+4/15 =75/120+32/120 =107/120

1又9/15*3.3 =(1+9/15)*3.3 =1*3.3+9/15*3.3 =3.3+0.6*3.3 =3.3+1.98 =5.28 2又6/7*0.875 =20/7*7/8 =20/8 =2.5 1又3/5*0.625 =8/5*5/8 =1

=8分之5×15分之2 =12分之1

12分之7×0.625÷15分之16 =12分之7×8分之5×16分之15 =(4×8×16)分之(7×5×5) =512分之175 结果是512分之175

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