Question

Calcule:
A) -2/5 - 4/9
B) 6/11 - 4/3
C) 4/9 + 3/3

Answer 1

OLá

a) - 2/5 - 4/9 ==>o mmc de 5,9=45

-18 - 20/45

- 38/45

b) 6/11 - 4/3==mmc de 11,3=33

18 - 44/33

- 26/33

c) 4/9 + 3/3 = mmc de 9,3=9

4 + 9/9

+ 13/9

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