Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/5 and 84/42

1st number: 2 2/5, 2nd number: 2 0/42

12/5 + 84/42 is 22/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 5 × 42 = 210,
    12/5 = 12 × 42/5 × 42 = 504/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    84/42 = 84 × 5/42 × 5 = 420/210
  4. Add the two like fractions:
    504/210 + 420/210 = 504 + 420/210 = 924/210
  5. 924/210 simplified gives 22/5
  6. So, 12/5 + 84/42 = 22/5
    In mixed form: 42/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com