Add and Subtract Fractions with Different Denominators

EXAMPLE 4.67

Add: \(\dfrac{1}{2}+\dfrac{1}{3}\).

EXAMPLE 4.68

Subtract: \(\dfrac{1}{2}-\left(-\dfrac{1}{4}\right)\).

EXAMPLE 4.69

Add: \(\dfrac{7}{12}+\dfrac{5}{18}\)

EXAMPLE 4.70

Subtract: \(\dfrac{7}{15}-\dfrac{19}{24}\).

EXAMPLE 4.71

Add: \(-\dfrac{11}{30}+\dfrac{23}{42}\).

EXAMPLE 4.72

Add: \(\dfrac{3}{5}+\dfrac{x}{8}\).