Subtracting Fractions with unlike denominators

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Subtracting fractions means finding the difference between two fractions.

Unlike denominators are denominators that are not the same in two or more fractions.

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Subtract the numerators and keep the common denominator.

The first step is to find a common denominator, which in this case is 20.

The common denominator is 12.

Divide both the numerator and denominator by their greatest common divisor, which is 4. This simplifies to $$\frac{1}{3}$$ .

The answer is $$\frac{1}{18}$$ .

Find a common denominator (42), convert the fractions, and then subtract: $$\frac{35}{42} - \frac{6}{42} = \frac{29}{42}$$ .

The GCD is the largest number that divides two or more numbers without leaving a remainder.