Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/98 and 42/90

72/98 + 42/90 is 883/735.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 90 is 4410

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 98 × 45 = 4410,
    72/98 = 72 × 45/98 × 45 = 3240/4410
  3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
    42/90 = 42 × 49/90 × 49 = 2058/4410
  4. Add the two like fractions:
    3240/4410 + 2058/4410 = 3240 + 2058/4410 = 5298/4410
  5. 5298/4410 simplified gives 883/735
  6. So, 72/98 + 42/90 = 883/735
    In mixed form: 1148/735

MathStep (Works offline)

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

Related:

© everydaycalculation.com