# College Math

posted by
**HM** on
.

Could you show me how to do

5z/7 - 5z/8 = 1

The answer is 56/7

But how did they get it ?

posted by
**HM** on
.

Could you show me how to do

5z/7 - 5z/8 = 1

The answer is 56/7

But how did they get it ?