Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/25 and 21/28

5/25 + 21/28 is 19/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 28 is 700

    Next, find the equivalent fraction of both fractional numbers with denominator 700
  2. For the 1st fraction, since 25 × 28 = 700,
    5/25 = 5 × 28/25 × 28 = 140/700
  3. Likewise, for the 2nd fraction, since 28 × 25 = 700,
    21/28 = 21 × 25/28 × 25 = 525/700
  4. Add the two like fractions:
    140/700 + 525/700 = 140 + 525/700 = 665/700
  5. 665/700 simplified gives 19/20
  6. So, 5/25 + 21/28 = 19/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com