Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 81/45 and 90/27

1st number: 1 36/45, 2nd number: 3 9/27

81/45 + 90/27 is 77/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135
  2. For the 1st fraction, since 45 × 3 = 135,
    81/45 = 81 × 3/45 × 3 = 243/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    90/27 = 90 × 5/27 × 5 = 450/135
  4. Add the two fractions:
    243/135 + 450/135 = 243 + 450/135 = 693/135
  5. After reducing the fraction, the answer is 77/15
  6. In mixed form: 52/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com