(-0.875-7/24+7/4)*(-8/7)求答案
題目:
(-0.875-7/24+7/4)*(-8/7)求答案
解答:
-0.875=-7/8
(-0.875-7/24+7/4)*(-8/7)
=(-7/8)*(-8/7) - (7/24)*(-8/7) + (7/4)*(-8/7)
=1+1/3 - 2
=-2/3
題目:
(-0.875-7/24+7/4)*(-8/7)求答案
解答:
-0.875=-7/8
(-0.875-7/24+7/4)*(-8/7)
=(-7/8)*(-8/7) - (7/24)*(-8/7) + (7/4)*(-8/7)
=1+1/3 - 2
=-2/3
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