Question

Выполните действие а) 4/15+8/15 б) 13/20-7/20 в) 4,7/8-3,5/8

Answer 1

12/15=4/5. 6/20=3/10 1,2/8

Answer 2

а) 4/15 + 8/15 = (4 + 8)/15 = 12/15 = 4/5

б) 13/20 - 7/20 = (13 - 7)/20 = 6/20 = 3/10

в) 4.7/8 - 3.5/8 = (4.7 - 3.5)/8 = 1.2/8 = 0.15