Question

Вычислите: 1/2+1/4,1/3-1/6,1/4+1/8,1/5-1/10

Answer 1

1/2 + 1/4 = (2+1)/4 = 3/4
1/3 - 1/6 = (2-1)/6 = 1/6
1/4 + 1/8 = (2+1)/8 = 3/8
1/5 - 1/10 = (2-1)/10 = 1/10

Answer 2

1/2 + 1/4 = (2/4) + (1/4) = 3/4

1/3 - 1/6 = (2/6) - (1/6) = 1/6

1/4 + 1/8 = (2/8) + (1/8) = 3/8

1/5 - 1/10 = (2/10) - (1/10) = 1/10