HaroldHagee
7

# Is 4/5  and 8/10 equivalent

Yes. They both are 0.8. In expressions, you choose one of these forms (or another one, there's really no limit) that allows you to do the calculations. For example you cannot directly calculate $\frac{4}{5} + \frac{3}{10}$, but you can do $\frac{8}{10} + \frac{3}{10}$.