Question

find the sum of two rational numbers -5/12 + 4/-9​

Answer 1

-5/12 + 4/-9

= -5× 3/12×3 + -4×4/9×4 (since LCM of 12 and 9 = 36)

=-15/36 + (-16/36)

=-15/36 -16/36

=-31/36

Hence, the sum of two rational no. -5/12 + 4/-9 is -31/36

That's solve