Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/35 and 42/20

1st number: 12/35, 2nd number: 2 2/20

12/35 + 42/20 is 171/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 35 × 4 = 140,
    12/35 = 12 × 4/35 × 4 = 48/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    42/20 = 42 × 7/20 × 7 = 294/140
  4. Add the two like fractions:
    48/140 + 294/140 = 48 + 294/140 = 342/140
  5. 342/140 simplified gives 171/70
  6. So, 12/35 + 42/20 = 171/70
    In mixed form: 231/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com