The difference of this equation is 1/5
The reason:
If you want to add or subtract fractions, you need to make the denominators, the bottom numbers, the same. In this equation, we need to change the halves into tenths.
Take 1/2 and multiply the numerator and denominator by 5 to get 5/10.
Subtract 5/10 from 7/10.
7/10 - 5/10
Take the solution from that (2/10) and simplify it.
2/10 = 1/5
There you go! Hope this helps.