Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/28 and 15/7

1st number: 1 12/28, 2nd number: 2 1/7

40/28 + 15/7 is 25/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 28 × 1 = 28,
    40/28 = 40 × 1/28 × 1 = 40/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    15/7 = 15 × 4/7 × 4 = 60/28
  4. Add the two like fractions:
    40/28 + 60/28 = 40 + 60/28 = 100/28
  5. 100/28 simplified gives 25/7
  6. So, 40/28 + 15/7 = 25/7
    In mixed form: 34/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com