Find -6/13 – (-7/15)Find -6/13 – (-7/15)Find -6/13 – (-7/15)

Dear Student

We have,
= -6/13 + 7/15
LCM of 13 and 15 is 195
Express each of the given rational numbers with the above LCM as the common denominator.
Now,
(-6/13)= [(-6×15)/ (13×15)] = (-90/195)
(7/15)= [(7×13)/ (15×13)] = (91/195)
Then,
= (-90/195) + (91/195) .. [∵denominator is same in both the rational numbers]
= (-90 + 91)/195
= (1/195)

Thanks