Efetue as multiplicações:
a) 2/9 x 1/4
b) 2/3 x 7/5 x 10/21
Efetue as divisões:
a)2/5 : 3/8
b) 1/10 : 3/5
c) 1/5 : 23/56
d) 3/5 : 6/5
a) 2/9 x 1/4
b) 2/3 x 7/5 x 10/21
Efetue as divisões:
a)2/5 : 3/8
b) 1/10 : 3/5
c) 1/5 : 23/56
d) 3/5 : 6/5
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1. a) 2/9 • 1/4
= 1/9 • 1/2
= 1/18
b) 2/3 • 7/5 • 10/21
= 2/3 • 2/3
= 4/9
2. a) 2/5 ÷ 3/8
= 2/5 • 8/3
= 16/15
b) 1/10 ÷ 3/5
= 1/10 • 5/3
= 5/30
= 1/6
c) 1/5 ÷ 23/56
= 1/5 • 56/23
= 56/115
d) 3/5 ÷ 6/5
= 3/5 • 5/6
= 15/30
= 1/2
Espero ter te ajudado!