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87又7/8除以7等于多少

87又7/8 ÷ 7 =(87x8+7)÷8÷ 7 =(696+7)÷(8 x 7) =703÷ 56 =703/56 =12又31/56 谢谢,请采纳

87+78=165

7/8除以(2/3)除以87.5%=7/8除以87.5%除以(2/3)=3/2

如果是(7/4-7/8-7/12)=7/24,再/(-8/7)=-1/3;总觉得是不是打错了,不然不是分母超大

将87提出来

88*7=(87+1)*7=87*7+1*7 87*8=87*(1+7)=87*7+87*1 因为87>7 所以87*8>88*7

7/8*1/5+7/8*87%-7/8*0.07?? =7/8 *(0.2+0.87-0.07) =7/8 *(1.07-0.07) =7/8 *1 =7/8

87X7/88=87X7/11X1/8=609/88

3.87x(10+8.7) =3.87x18.7 =72.369 答:积是72.369 .

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