Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/5 and 21/56

1st number: 6 0/5, 2nd number: 21/56

30/5 + 21/56 is 51/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 5 × 56 = 280,
    30/5 = 30 × 56/5 × 56 = 1680/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    21/56 = 21 × 5/56 × 5 = 105/280
  4. Add the two like fractions:
    1680/280 + 105/280 = 1680 + 105/280 = 1785/280
  5. 1785/280 simplified gives 51/8
  6. So, 30/5 + 21/56 = 51/8
    In mixed form: 63/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com