Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/72 and 70/63

1st number: 30/72, 2nd number: 1 7/63

30/72 + 70/63 is 55/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    30/72 = 30 × 7/72 × 7 = 210/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    70/63 = 70 × 8/63 × 8 = 560/504
  4. Add the two like fractions:
    210/504 + 560/504 = 210 + 560/504 = 770/504
  5. 770/504 simplified gives 55/36
  6. So, 30/72 + 70/63 = 55/36
    In mixed form: 119/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com