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Estudos Gerais • 04/13/2025

3. Observe estes exemplos de cálculos com frações: 3/5 . 7 ...

Observe estes exemplos de cálculos com frações:

3/5 . 7 = 3/5 . 7/1 = 21/5 2/3 . 12 = 24/3 = 8 (3/2)^2 = 3/2 . 3/2 = 9/4

Baseando-se neles, efetue estes cálculos:

a) 4/5 . 10 = b) 3/7 . 2/5 = c) (2/5)^2 = d) 3/8 . 16 =

3. Observe estes exemplos de cálculos com frações:

3/5 . 7 = 3/5 . 7/1 = 21/5
2/3 . 12 = 24/3 = 8
(3/2)^2 = 3/2 . 3/2 = 9/4

Baseando-se neles, efetue estes cálculos:

a) 4/5 . 10 = ______
b) 3/7 . 2/5 = ______
c) (2/5)^2 = ______
d) 3/8 . 16 = ______

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