4⼀7×54-16×3⼀5+27×6⼀7+1⼀5×3等于多少?

要细节步骤
2024-12-04 09:00:32
推荐回答(2个)
回答1:

如图所示望采纳

回答2:

4/7×54-16×3/5+27×6/7+1/5×3
=4/7×2×27-16×3/5+27×6/7+3/5
=8/7×27++27×6/7-(16×3/5-3/5)
=27×(8/7+6/7)-(16-1)×3/5
=27×2-15×3/5
=54-9
=45