Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/28 and 27/21

1st number: 1 2/28, 2nd number: 1 6/21

30/28 + 27/21 is 33/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 28 × 3 = 84,
    30/28 = 30 × 3/28 × 3 = 90/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    27/21 = 27 × 4/21 × 4 = 108/84
  4. Add the two like fractions:
    90/84 + 108/84 = 90 + 108/84 = 198/84
  5. 198/84 simplified gives 33/14
  6. So, 30/28 + 27/21 = 33/14
    In mixed form: 25/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com