Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/21 and 25/7

1st number: 1 9/21, 2nd number: 3 4/7

30/21 + 25/7 is 5/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 21 × 1 = 21,
    30/21 = 30 × 1/21 × 1 = 30/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    25/7 = 25 × 3/7 × 3 = 75/21
  4. Add the two like fractions:
    30/21 + 75/21 = 30 + 75/21 = 105/21
  5. 105/21 simplified gives 5/1
  6. So, 30/21 + 25/7 = 5/1

MathStep (Works offline)

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

Related:

© everydaycalculation.com