Решите примеры. 4/5 + 7/15 6 2/3 + 2 1/2 8 3/4 - 5 1/6 4 1/3 - 7/10

Question

Решите примеры.
4/5 + 7/15
6 2/3 + 2 1/2
8 3/4 - 5 1/6
4 1/3 - 7/10

Answer 1

4/5+7/15=12/15+7/15=19/15=1 4/15
6 2/3+2 1/2 = 6 4/6+2 3/6=8 7/6=9 1/6
8 3/4 - 5 1/6= 8 9/12-5 2/12= 3 7/12
4 1/3-7/10= 4 10/30- 21/30=3 40/30-21/30=3 19/30