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0.875减7/8减1/4的和是多少用简便方法计算

0.875-(7/8-1/4) =0.875-7/8+1/4 =0+1/4 =1/4

解如图。

1/8 +0点875-3/4等于多少 1/8 +0点875-3/4 =1/8+7/8-3/4...

原式 =4分之1×(2×8分之3)+4分之1×8分之7+4分之1 =4分之1×(4分之3+8分之7+...

1287x7x2

(7/8)*4+0.875/(1/6) =0.875*4+0.875*6 =0.875*(4+6...

6.25+1/8-(1/4-0.875) =6.25+0.125-0.25+0.875 =(6....

0.875-14+18-14 =(0.875+1/8)-(1/4+1/4) =1-1/2 =1...

1又1/2×【(2.25+4又1/6)÷77%】-1又2/13 =1又1/2×【77/12÷77%】...

=(7/8)*36+405/81 =63/2+(1/2) =(63+1)/2 =64/2 =...

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