Question

find the sum of -13 by 9 and 9 by 21 fraction​

Answer 1

Take out the LCM of 21 and 9 and the multiply with -13 and 9 to get the answer I'm in hurry that's why I have not told full solution

Answer 2

Answer:

pls mark me as the brainliest

Step-by-step explanation:

I need it a lot