Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 6/21 and 42/30

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

6/21 + 42/30 is 59/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    6/21 = 6 × 10/21 × 10 = 60/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    42/30 = 42 × 7/30 × 7 = 294/210
  4. Add the two fractions:
    60/210 + 294/210 = 60 + 294/210 = 354/210
  5. 354/210 simplified gives 59/35
  6. So, 6/21 + 42/30 = 59/35
    In mixed form: 124/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com