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能简算要简算:30×(4/5+5/6)=?2/15×3+13/15÷1/3=?
人气:407 ℃ 时间:2019-09-29 02:56:02
解答
30×(4/5+5/6)
=30×(4/5)+30×(5/6)
=6×4+5×5
=24+25
=49
(2/15)×3+(13/15)÷1/3
=(2/15)×3+(13/15)×3
=3×(2/15+13/15)
=3×1
=3
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