Question

(+2/5)-(+1/4)=
(-5/8)-(+3/8)

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Answer 1

Olá....

Explicação passo-a-passo:

a)

(+ 2/5) - (+ 1/4)

2/5 - 1/4⇒mmc de 5,4 = 20

8 - 5/20

3/20

b)

(- 5/8) - (+ 3/8)

- 5/8 - 3/8⇒mmc = 8

- 5 - 3/8

- 8/8

- 1

Espero ter ajudado