计算,能简算要简算:4/15÷2/3+11/15÷2/3

问题描述:

计算,能简算要简算:4/15÷2/3+11/15÷2/3

=4/15×3/2+11/15×3/2
=(4/15+11/15)×3/2
=1×3/2
=3/2