负九分之七的绝对值除以三分之二减一的差减负二点五等于多少?

2025-05-14 10:05:37
推荐回答(1个)
回答(1):

|-7/9|÷(2/3 - 1) - (-2.5)
=(7/9)÷(-1/3) + 2.5
=(7/9)×(-3) + 5/2
=-7/3 + 5/2
=-14/6 + 15/6
=1/6