Question

me la resuelven porfaaaa​

Answer 1

Respuesta:

1. 3/7

2. 2/9

3. 212/45

Explicación paso a paso:

1. 2/14 + 3/21 + 1/7 = (6+6+6)/42= 18/42= 3/7

2. 4/5 + 1/9 - 2/3 = (36+4-30)/45= 10/45=2/9

3. 4/18 + 18/15 + 30/9 = (20+104+300)/90 =424/90= 212/45