Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 98/72 and 18/21

1st number: 1 26/72, 2nd number: 18/21

98/72 + 18/21 is 559/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 21 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    98/72 = 98 × 7/72 × 7 = 686/504
  3. Likewise, for the 2nd fraction, since 21 × 24 = 504,
    18/21 = 18 × 24/21 × 24 = 432/504
  4. Add the two like fractions:
    686/504 + 432/504 = 686 + 432/504 = 1118/504
  5. 1118/504 simplified gives 559/252
  6. So, 98/72 + 18/21 = 559/252
    In mixed form: 255/252

MathStep (Works offline)

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

Related:

© everydaycalculation.com