Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/40 and 25/7

1st number: 15/40, 2nd number: 3 4/7

15/40 + 25/7 is 221/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 7 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    15/40 = 15 × 7/40 × 7 = 105/280
  3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
    25/7 = 25 × 40/7 × 40 = 1000/280
  4. Add the two like fractions:
    105/280 + 1000/280 = 105 + 1000/280 = 1105/280
  5. 1105/280 simplified gives 221/56
  6. So, 15/40 + 25/7 = 221/56
    In mixed form: 353/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com