Question

respondan plisss
lo necesito

Answer 1

Respuesta:

a)

(2/3+4/9)+3/5

(6/9+4/9)+3/5

10/8+3/5

50+25/40

75/40

15/8

b)

6/15+(2/12+4/9)

6/15+(18+48/108)

6/15+(66/108)

6/15+33/59

354+495/885

849/885

c)

(5/4+2/3)+5/10

15+8/12+1/2

13/12+1/2

13/12+6/12

19/12

d)

3/5+(4/5+2/3)

3/5+(12+10/15)

3/5+22/15

9/15+22/15

31/15

DALE CORONITA