四分之三加五分之三加五分之二简算
问题描述:
四分之三加五分之三加五分之二简算
答
3/4+3/5+2/5
=3/4+(3/5+2/5)
=3/4+1
=7/4
四分之三加五分之三加五分之二简算
3/4+3/5+2/5
=3/4+(3/5+2/5)
=3/4+1
=7/4