Question

calcule o resultado de cada adição e subtração a)3/4 - 3/6 b)5/8 - 1/2
c)3/7 + 2/21​

Answer 1

a) 3/4 - 3/6 =
9/12 - 6/12 = 3/12 = 1/4

b) 5/8 - 1/2 =
5/8 - 4/8 = 1/8

c) 3/7 + 2/21 =
9/21 - 2/21 = 7/21 = 1/3