Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 4/84 and 12/90

4/84 + 12/90 is 19/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 90 is 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    4/84 = 4 × 15/84 × 15 = 60/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    12/90 = 12 × 14/90 × 14 = 168/1260
  4. Add the two fractions:
    60/1260 + 168/1260 = 60 + 168/1260 = 228/1260
  5. After reducing the fraction, the answer is 19/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com