Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/70 and 45/20

1st number: 7/70, 2nd number: 2 5/20

7/70 + 45/20 is 47/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    7/70 = 7 × 2/70 × 2 = 14/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    45/20 = 45 × 7/20 × 7 = 315/140
  4. Add the two like fractions:
    14/140 + 315/140 = 14 + 315/140 = 329/140
  5. 329/140 simplified gives 47/20
  6. So, 7/70 + 45/20 = 47/20
    In mixed form: 27/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com