Since both fractions mean to divide, I like to divide the numerators by the denominator, and I'll show you how I do it ----
7/10 = 0.7, or 70%
4/5 = 0.8, or 80%
You can now see that the 80% is larger than the 70%, and, this is why 7/10 is less than 4/5 :D
