Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/25 and 21/98

15/25 + 21/98 is 57/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 98 is 2450

    Next, find the equivalent fraction of both fractional numbers with denominator 2450
  2. For the 1st fraction, since 25 × 98 = 2450,
    15/25 = 15 × 98/25 × 98 = 1470/2450
  3. Likewise, for the 2nd fraction, since 98 × 25 = 2450,
    21/98 = 21 × 25/98 × 25 = 525/2450
  4. Add the two like fractions:
    1470/2450 + 525/2450 = 1470 + 525/2450 = 1995/2450
  5. 1995/2450 simplified gives 57/70
  6. So, 15/25 + 21/98 = 57/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com