Question

Вычеслите б) 1/2-2/5 в)1/4+1/6

Answer 1

Б) 1/2 - 2/5 = 5/10 - 4/10 = 1/10 = 0,1
в) 1/4 + 1/6 = 3/12 + 2/12 = 5/12

Answer 2

1/2-2/5=5/10-4/10=1/10
1/4+1/6=3/12+2/12=5/12