1.25×0.74+8分之1×4.6-1÷8
问题描述：
1.25×0.74+8分之1×4.6-1÷8
答
1.25×0.74+8分之1×4.6-1÷8
=5/4*0.74+1/8*4.6-1/8
=5/8*2*.074+1/8*4.6-1/8
=1/8*（5*2*0.74+4.6-1）
=1/8*（7.4+4.6-1）
=1/8*(12-1)
=11/8
答
你好: 解 : 原式 = 1.25×0.74+8分之1×4.6-1÷8 = 1.25×0.74+ 1/8 × 4.6 - 1÷8 =1/8 × 7.4 + 1/8 × 4.6 - 1/8 = 1/8 ( 7.4 + 4....