Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/21 and 40/30

1st number: 1/21, 2nd number: 1 10/30

1/21 + 40/30 is 29/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    1/21 = 1 × 10/21 × 10 = 10/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    40/30 = 40 × 7/30 × 7 = 280/210
  4. Add the two like fractions:
    10/210 + 280/210 = 10 + 280/210 = 290/210
  5. 290/210 simplified gives 29/21
  6. So, 1/21 + 40/30 = 29/21
    In mixed form: 18/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com