Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/80 and 42/40

1st number: 18/80, 2nd number: 1 2/40

18/80 + 42/40 is 51/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 40 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    18/80 = 18 × 1/80 × 1 = 18/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    42/40 = 42 × 2/40 × 2 = 84/80
  4. Add the two like fractions:
    18/80 + 84/80 = 18 + 84/80 = 102/80
  5. 102/80 simplified gives 51/40
  6. So, 18/80 + 42/40 = 51/40
    In mixed form: 111/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com