Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/10 and 6/28

1st number: 2 1/10, 2nd number: 6/28

21/10 + 6/28 is 81/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 10 × 14 = 140,
    21/10 = 21 × 14/10 × 14 = 294/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    6/28 = 6 × 5/28 × 5 = 30/140
  4. Add the two like fractions:
    294/140 + 30/140 = 294 + 30/140 = 324/140
  5. 324/140 simplified gives 81/35
  6. So, 21/10 + 6/28 = 81/35
    In mixed form: 211/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com