Question

please do both the A and B please do it correctly it is urgent​

Answer 1

Answer:

A : 5/6's additive inverse is -5/6 and multiplicative inverse of -5/7×14/15 is -3/1×2/5 after cancellation = 6/5=5/6 (multiplicative inverse)

Subtract (5/6) and (-5/6)

5/6 + 5/6 (additive inverse)

11/6.

B : (7/15) + (-9/25) + (-3/10)

L.C.M of 15,25&10 is 150

so,

[7/15×10/10] , [-9/25×6/6] & [-3/10×15/15]

=> 70/150+(-54/150)+(-45/150)

=> 70+(-54)+(-45)

150

=> -29/150

thank you