Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/28 and 4/72

1st number: 1 14/28, 2nd number: 4/72

42/28 + 4/72 is 14/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 28 × 18 = 504,
    42/28 = 42 × 18/28 × 18 = 756/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    4/72 = 4 × 7/72 × 7 = 28/504
  4. Add the two like fractions:
    756/504 + 28/504 = 756 + 28/504 = 784/504
  5. 784/504 simplified gives 14/9
  6. So, 42/28 + 4/72 = 14/9
    In mixed form: 15/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com