Question

add the following i)-7/15 + 2/-5 ii) -8/9 + 7/12.​

Answer 1

Answer:

i) -13/15

ii) -2/9

Step-by-step explanation:

i) -7/15 + (2/-5)

(-)(+) = (-)

-7/15 - 2/5

take LCM

(-7 - 6)/15

= -13/15

ii) -8/9 + 7/12

Take LCM:

(-8 x4 + 7 x 4)/36

= (-36 + 28)/36

= -8/36

= -2/9

Answer 2

1 ) 7 / 5 + 2 / - 5

solution

7 / 5 - 2 / 5

7 - 2 / 5

5 / 5

1

2 ) 8 / 9 + 7 / 12

solution

36 / 36 + 21 / 37

32 + 21 / 36

53 / 36