Решите (1/3+1/5)*6
1/3+1/5=(5+3)/15=8/15 (8/15)*6=48/15=16/5=3,2
(1/3)+(1/5)=(5/15)+(3/15)=8/15; (8/15)·6=(8·6)/15=16/5=3 целых1/5=3,2