Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/40 and 28/84

12/40 + 28/84 is 19/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 84 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    12/40 = 12 × 21/40 × 21 = 252/840
  3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
    28/84 = 28 × 10/84 × 10 = 280/840
  4. Add the two like fractions:
    252/840 + 280/840 = 252 + 280/840 = 532/840
  5. 532/840 simplified gives 19/30
  6. So, 12/40 + 28/84 = 19/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com