Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 25/45 and 14/21

25/45 + 14/21 is 11/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 21 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    25/45 = 25 × 7/45 × 7 = 175/315
  3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
    14/21 = 14 × 15/21 × 15 = 210/315
  4. Add the two like fractions:
    175/315 + 210/315 = 175 + 210/315 = 385/315
  5. 385/315 simplified gives 11/9
  6. So, 25/45 + 14/21 = 11/9
    In mixed form: 12/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com