分数运算过程如下
解题思路:需要先进行通分(最小公倍数),通分转换为公分母后将所有分子相加减后得出计算出来的分数,之后再化简为最简分数即可。
解题过程:
4/5-3/10+2/3
=8/10-3/10+2/3
=1/2+2/3
=3/6+4/6
=7/6
存疑请追问满意请采纳
简单的先通分,不要一次都通分。
4/5-3/10+2/3
=8/10-3/10+2/3
=5/10+2/3
=1/2+2/3
=3/6+4/6
=7/6
望采纳,谢谢
4/5-3/10+2/3
=24/30-9/30+20/30
=35/30
=7/6
4/5-3/10+2/3
=8/10-3/10+2/3
=1/2+2/3
=3/6+4/6
=7/6
=1又1/6
通分计算
原式=24/30-9/30+20/30
=15/30+20/30
=35/30
=7/6