Question

a) 7/5.25/21
b) 100/36.1/4
c) 14/5:7/25

Answer 1

Oi...

a) = 7/5 × 25/21 = 175/105 ÷ 35 = 5/3

b) 100/36 × 1/4 = 100/144 ÷ 4 = 25/36

c) 14/5 ÷ 7/25 = 14/5 × 25/7 = 350/35 ÷ 35 = 10

Bons estudos.