Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 63/21 and 25/70

1st number: 3 0/21, 2nd number: 25/70

63/21 + 25/70 is 47/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    63/21 = 63 × 10/21 × 10 = 630/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    25/70 = 25 × 3/70 × 3 = 75/210
  4. Add the two like fractions:
    630/210 + 75/210 = 630 + 75/210 = 705/210
  5. 705/210 simplified gives 47/14
  6. So, 63/21 + 25/70 = 47/14
    In mixed form: 35/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com