Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/42 and 42/84

1st number: 1 3/42, 2nd number: 42/84

45/42 + 42/84 is 11/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    45/42 = 45 × 2/42 × 2 = 90/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    42/84 = 42 × 1/84 × 1 = 42/84
  4. Add the two like fractions:
    90/84 + 42/84 = 90 + 42/84 = 132/84
  5. 132/84 simplified gives 11/7
  6. So, 45/42 + 42/84 = 11/7
    In mixed form: 14/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com