Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 25/15 and 6/21

1st number: 1 10/15, 2nd number: 6/21

25/15 + 6/21 is 41/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 21 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    25/15 = 25 × 7/15 × 7 = 175/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    6/21 = 6 × 5/21 × 5 = 30/105
  4. Add the two like fractions:
    175/105 + 30/105 = 175 + 30/105 = 205/105
  5. 205/105 simplified gives 41/21
  6. So, 25/15 + 6/21 = 41/21
    In mixed form: 120/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com