Question

calcule as frações: ​

Answer 1

Resposta:

Explicação passo a passo:

A)

2 3/5 - 1/10

= (5.2+3)/5 - 1/10

= (10+3)/5 - 1/10

= 13/5 - 1/10

= (2.13 - 1)/10

= (26-1)/10

= 25/10 (:5)/(:5)

= 5/2

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B)

3 1/2 - 1/6

= (2.3+1)/2 - 1/6

= 7/2 - 1/6

Mmc (2,6)=6

= (3.7 - 1)/6

= (21-1)/6

= 20/6 (:2)/(:2)

= 10/3

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C)

1 1/2 + 1 1/2

= (2.1+1)/2+ (2.1+1)/2

= (2+1)/2 + (2+1)/2

= 3/2 + 3/2

= 6/2

= 3

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D)

1/3+1/2+3

Mmc (3,2)= 6

= (2+3+6.3)/6

= (5+18)/6

= 23/6

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