Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/72 and 9/49

21/72 + 9/49 is 559/1176.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 49 is 3528

    Next, find the equivalent fraction of both fractional numbers with denominator 3528
  2. For the 1st fraction, since 72 × 49 = 3528,
    21/72 = 21 × 49/72 × 49 = 1029/3528
  3. Likewise, for the 2nd fraction, since 49 × 72 = 3528,
    9/49 = 9 × 72/49 × 72 = 648/3528
  4. Add the two like fractions:
    1029/3528 + 648/3528 = 1029 + 648/3528 = 1677/3528
  5. 1677/3528 simplified gives 559/1176
  6. So, 21/72 + 9/49 = 559/1176

MathStep (Works offline)

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

Related:

© everydaycalculation.com