Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/3 and 21/20

1st number: 10 0/3, 2nd number: 1 1/20

30/3 + 21/20 is 221/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 20 is 60
  2. For the 1st fraction, since 3 × 20 = 60,
    30/3 = 30 × 20/3 × 20 = 600/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    21/20 = 21 × 3/20 × 3 = 63/60
  4. Add the two fractions:
    600/60 + 63/60 = 600 + 63/60 = 663/60
  5. 663/60 simplified gives 221/20
  6. So, 30/3 + 21/20 = 221/20
    In mixed form: 111/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com