Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/90 and 30/98

81/90 + 30/98 is 591/490.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 90 × 49 = 4410,
    81/90 = 81 × 49/90 × 49 = 3969/4410
  3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
    30/98 = 30 × 45/98 × 45 = 1350/4410
  4. Add the two like fractions:
    3969/4410 + 1350/4410 = 3969 + 1350/4410 = 5319/4410
  5. 5319/4410 simplified gives 591/490
  6. So, 81/90 + 30/98 = 591/490
    In mixed form: 1101/490

MathStep (Works offline)

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

Related:

© everydaycalculation.com