Adding and subtracting fractions means putting parts together or taking them away, just like with whole numbers — but using numerators and denominators.
Fractions must have the same denominator to add or subtract.
One-fourth + two-fourths = three-fourths
Keep the denominator. Add the numerators.
One-half + one-third
→ Find a common denominator: sixths
Three-sixths + two-sixths = five-sixths
It helps us combine and compare parts in recipes, money, measurements, and more.