Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/90 and 2/84

21/90 + 2/84 is 9/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 84 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    21/90 = 21 × 14/90 × 14 = 294/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    2/84 = 2 × 15/84 × 15 = 30/1260
  4. Add the two like fractions:
    294/1260 + 30/1260 = 294 + 30/1260 = 324/1260
  5. 324/1260 simplified gives 9/35
  6. So, 21/90 + 2/84 = 9/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com