Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 21/72 and 8/30

21/72 + 8/30 is 67/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 30 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    21/72 = 21 × 5/72 × 5 = 105/360
  3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
    8/30 = 8 × 12/30 × 12 = 96/360
  4. Add the two fractions:
    105/360 + 96/360 = 105 + 96/360 = 201/360
  5. After reducing the fraction, the answer is 67/120

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com