Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/14 and 63/15

1st number: 1 7/14, 2nd number: 4 3/15

21/14 + 63/15 is 57/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 14 × 15 = 210,
    21/14 = 21 × 15/14 × 15 = 315/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    63/15 = 63 × 14/15 × 14 = 882/210
  4. Add the two like fractions:
    315/210 + 882/210 = 315 + 882/210 = 1197/210
  5. 1197/210 simplified gives 57/10
  6. So, 21/14 + 63/15 = 57/10
    In mixed form: 57/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com