Question

Efetue as subtrações

a) 7/8 - 1/2
b) 5/6 - 3/8

Answer 1

a) 7/8 - 1/2
7/8-1×4/2×4
7/8-4/8
7-4/8
x=3/8

b) 5/6 - 3/8
5×4/6×4-3×3/8×3
20/24-9/24
20-9/24
x=11/24