Coefficients as Fractions

# Coefficients as Fractions

GCSE(F),

The number at the start of a term - for example, the number 3 at the start of 3x, is known as a coefficient. The coefficient of 5x3 is 5. But the coefficient need not necessarily be an integer; it may be a fraction or a decimal.

## Examples

1. Simplify frac(1)(2)a + frac(1)(3)a.

Answer: frac(5)(6)a

frac(1)(2)a + frac(1)(3)a = frac(3)(6)a + frac(2)(6)a = frac(5)(6)a

2. Multiply frac(1)(2)b and 4b.

frac(1)(2) x 4 x b x b = 2b2