calcule:
a) 3/8 × 1/7
b) 4/3 × 9/8
c) 3/4 × 7/3 × 4/7
d) 1/2 ÷ 2
e) 3 ÷ 5/3
Soluções para a tarefa
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a) 3/8 × 1/7
3/56
b) 4/3 × 9/8
36/24
12/8
3/2
c) 3/4 × 7/3 × 4/7
21/12 × 4/7
84/84
1
d) 1/2 ÷ 2
1/2 × 1/2
1/4
e) 3 ÷ 5/3
3/1 × 3/5
9/5
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