Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/28 and 42/6

1st number: 20/28, 2nd number: 7 0/6

20/28 + 42/6 is 54/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 6 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 28 × 3 = 84,
    20/28 = 20 × 3/28 × 3 = 60/84
  3. Likewise, for the 2nd fraction, since 6 × 14 = 84,
    42/6 = 42 × 14/6 × 14 = 588/84
  4. Add the two like fractions:
    60/84 + 588/84 = 60 + 588/84 = 648/84
  5. 648/84 simplified gives 54/7
  6. So, 20/28 + 42/6 = 54/7
    In mixed form: 75/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com