1⼀2×3⼀5+2⼀5等于多少填小括号3-0.6小括号除以十五分之八等于多少?

2024-11-07 22:46:09
推荐回答(1个)
回答1:

1/2×3/5+2/5
=3/10+4/10
=7/10
(3-0.6)÷8/15
=2.4×15/8
=4.5