Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 40/42 and 27/72

40/42 + 27/72 is 223/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 72 is 504
  2. For the 1st fraction, since 42 × 12 = 504,
    40/42 = 40 × 12/42 × 12 = 480/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    27/72 = 27 × 7/72 × 7 = 189/504
  4. Add the two fractions:
    480/504 + 189/504 = 480 + 189/504 = 669/504
  5. After reducing the fraction, the answer is 223/168
  6. In mixed form: 155/168

MathStep (Works offline)

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

Related:

© everydaycalculation.com