Question

Calcular: 2/3+4/5-7/9

Answer 1

Respuesta:

31/45

Explicación paso a paso:

3,5,9/3

1,5,3/3

1,5,1/5

1,1,1/____// mcm(3,5,9)=3².5=45

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2/3+4/5 -7/9=(30+36-35)/45

2/3+4/5-7/9=(66-35)/45

2/3+4/5-7/9=31/45