The multiplication of two fractions with the same denominator

Compute the difference of two fractions

105 5
- =
31 31

Remember !

The fractions have the following form   

Where A is the numerator and B is the denominator.

The difference of two or more fractions which have the same denominator is computed by substractint the one numerator from another and copying the denomintaor.

If we do not have the same denominator, we must bring the fractions to same denominator by multiplying together the two denominators.

Exemple !

4 1 3
- =
7 7 7

By learning math, you learn to think.