(7.51÷2-2.08)×1.1简算怎么简?

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2025-03-26 10:52:10
推荐回答(2个)
回答1:

(7.51÷2-2.08)×1.1
=7.51×1.1÷2-(2+0.08)×1.1
=7.51×(1+0.1)÷2-(2×1.1+0.08×1.1)
=(7.51+0.751)÷2-(2.2+0.088)
=4.1305-2.288
=1.8425

回答2:

(1/51+2/87)÷1/29+22÷51
=(1/51+2/87)×29+22/51
=1/51×29+2/87×29+22/51
=(29/51+22/51)+2/3
=1+2/3
=1又2/3