Resposta:
Explicação passo a passo:
a) 1/5 × 4/3
1x4/5x3=
4/15
b) (-15/25 ÷ 30/4)
-15/25x4/30=
-3/5x2/15=
-6/75=
-3/25
c) (2 + 1/2) • (5 - 4/5)=
(4+1 ) . (25-4)=
2 5
5/2x21/5=
21/2
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Resposta:
Explicação passo a passo:
a) 1/5 × 4/3
1x4/5x3=
4/15
b) (-15/25 ÷ 30/4)
-15/25x4/30=
-3/5x2/15=
-6/75=
-3/25
c) (2 + 1/2) • (5 - 4/5)=
(4+1 ) . (25-4)=
2 5
5/2x21/5=
21/2