Question

5/18-2 ⋅23/30
Помогите пж

Answer 1

5/18-2 ⋅23/30=-1 23/90

1)2 ⋅23/30=23/15

2)5/18-23/15=общий знаменатель 90=

=(5*5+23*6)/90=113/90=1 23/90