Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/5 and 84/54

1st number: 4 1/5, 2nd number: 1 30/54

21/5 + 84/54 is 259/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 5 × 54 = 270,
    21/5 = 21 × 54/5 × 54 = 1134/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    84/54 = 84 × 5/54 × 5 = 420/270
  4. Add the two like fractions:
    1134/270 + 420/270 = 1134 + 420/270 = 1554/270
  5. 1554/270 simplified gives 259/45
  6. So, 21/5 + 84/54 = 259/45
    In mixed form: 534/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com