Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/21 and 3/35

1/21 + 3/35 is 2/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 35 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    1/21 = 1 × 5/21 × 5 = 5/105
  3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
    3/35 = 3 × 3/35 × 3 = 9/105
  4. Add the two like fractions:
    5/105 + 9/105 = 5 + 9/105 = 14/105
  5. 14/105 simplified gives 2/15
  6. So, 1/21 + 3/35 = 2/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com