Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/98 and 21/8

1st number: 7/98, 2nd number: 2 5/8

7/98 + 21/8 is 151/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 8 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 98 × 4 = 392,
    7/98 = 7 × 4/98 × 4 = 28/392
  3. Likewise, for the 2nd fraction, since 8 × 49 = 392,
    21/8 = 21 × 49/8 × 49 = 1029/392
  4. Add the two like fractions:
    28/392 + 1029/392 = 28 + 1029/392 = 1057/392
  5. 1057/392 simplified gives 151/56
  6. So, 7/98 + 21/8 = 151/56
    In mixed form: 239/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com