Let's evaluate: $\frac{1}{4}+\frac{1}{2}$

ⓘ To add fractions, put them over the same denominator, then add the numerators. We choose $4$, the least common multiple of $4$ and $2$. Multiplying the numerator and the denominator by the same number does not change the fraction: $\frac{1}{4}+\frac{1}{2}$ = $\frac{1}{4}+\frac{1\times 2}{2\times 2}$ = $\frac{1+1\times 2}{4}$ = $\frac{1+2}{4}$

$\frac{1+2}{4}$

ⓘ The numerator and the denominator are computed before the division: $1+2$ = $3$

▶Result:   $\frac{3}{4}$

The numeric value of: $\frac{3}{4}$ is:

▷ $0.75$