(5/6-5/12)×36 66/13×12+66/12 怎么算

问题描述:

(5/6-5/12)×36 66/13×12+66/12 怎么算

(5/6-5/12)×36
=5/6x36-5/12x36
=30-15
=15
66/13×12+66/13
=66x(12/13+1/13)
=66x1
=66
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