Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 84/42 and 9/81

1st number: 2 0/42, 2nd number: 9/81

84/42 + 9/81 is 19/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 81 is 1134
  2. For the 1st fraction, since 42 × 27 = 1134,
    84/42 = 84 × 27/42 × 27 = 2268/1134
  3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
    9/81 = 9 × 14/81 × 14 = 126/1134
  4. Add the two fractions:
    2268/1134 + 126/1134 = 2268 + 126/1134 = 2394/1134
  5. After reducing the fraction, the answer is 19/9
  6. In mixed form: 21/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com