Answer: Making them into improper fractions will really help you with subtracting mixed fractions! For example 2
- 1
.
Making them into improper fractions will turn the expression into
-
.
Turn the denominators into the greatest common multiple, so the greatest common multiple of 5 and 4 is 20. Meaning you multiply
by 4 and
by 5.
You now have
, which is much easier to work with. Simply subtract the numerators, and you should get
.
Hope this helps :)