Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/70 and 27/84

42/70 + 27/84 is 129/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 70 × 6 = 420,
    42/70 = 42 × 6/70 × 6 = 252/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    27/84 = 27 × 5/84 × 5 = 135/420
  4. Add the two like fractions:
    252/420 + 135/420 = 252 + 135/420 = 387/420
  5. 387/420 simplified gives 129/140
  6. So, 42/70 + 27/84 = 129/140

MathStep (Works offline)

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

Related:

© everydaycalculation.com