(6分之5-7分之3+3分之1-14分之9)÷(-42分之1)列式计算

2024-11-23 02:06:05
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回答(1):

(5/6-3/7+1/3-9/14)/(-1/42)
=(7/6-15/14)/(-1/42)
=(49-45/21)/(-1/42)
=4/21*(-42)
=-2*4
=-8