Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/5 and 42/98

1st number: 4 1/5, 2nd number: 42/98

21/5 + 42/98 is 162/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 98 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 5 × 98 = 490,
    21/5 = 21 × 98/5 × 98 = 2058/490
  3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
    42/98 = 42 × 5/98 × 5 = 210/490
  4. Add the two like fractions:
    2058/490 + 210/490 = 2058 + 210/490 = 2268/490
  5. 2268/490 simplified gives 162/35
  6. So, 21/5 + 42/98 = 162/35
    In mixed form: 422/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com