7⼀5+1⼀12+5⼀12+3⼀7等于几分之几怎么算?

2025-04-04 08:19:52
推荐回答(1个)
回答1:

解答如下:
7/5+1/12+5/12+3/7
=7/5+6/12+3/7
=7/5+1/2+3/7
=14/10+5/10+3/7
=19/10+3/7
=(19×7+3×10)/70
=163/70