Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/50 and 70/42

1st number: 30/50, 2nd number: 1 28/42

30/50 + 70/42 is 34/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 42 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 50 × 21 = 1050,
    30/50 = 30 × 21/50 × 21 = 630/1050
  3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
    70/42 = 70 × 25/42 × 25 = 1750/1050
  4. Add the two like fractions:
    630/1050 + 1750/1050 = 630 + 1750/1050 = 2380/1050
  5. 2380/1050 simplified gives 34/15
  6. So, 30/50 + 70/42 = 34/15
    In mixed form: 24/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com