Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/30 and 6/21

1st number: 2 12/30, 2nd number: 6/21

72/30 + 6/21 is 94/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    72/30 = 72 × 7/30 × 7 = 504/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    6/21 = 6 × 10/21 × 10 = 60/210
  4. Add the two like fractions:
    504/210 + 60/210 = 504 + 60/210 = 564/210
  5. 564/210 simplified gives 94/35
  6. So, 72/30 + 6/21 = 94/35
    In mixed form: 224/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com