Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/21 and 3/30

1st number: 1 7/21, 2nd number: 3/30

28/21 + 3/30 is 43/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    28/21 = 28 × 10/21 × 10 = 280/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    3/30 = 3 × 7/30 × 7 = 21/210
  4. Add the two like fractions:
    280/210 + 21/210 = 280 + 21/210 = 301/210
  5. 301/210 simplified gives 43/30
  6. So, 28/21 + 3/30 = 43/30
    In mixed form: 113/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com