Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/30 and 21/63

12/30 + 21/63 is 11/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 30 × 21 = 630,
    12/30 = 12 × 21/30 × 21 = 252/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    21/63 = 21 × 10/63 × 10 = 210/630
  4. Add the two like fractions:
    252/630 + 210/630 = 252 + 210/630 = 462/630
  5. 462/630 simplified gives 11/15
  6. So, 12/30 + 21/63 = 11/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com