Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/18 and 15/70

1st number: 1 12/18, 2nd number: 15/70

30/18 + 15/70 is 79/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 18 × 35 = 630,
    30/18 = 30 × 35/18 × 35 = 1050/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    15/70 = 15 × 9/70 × 9 = 135/630
  4. Add the two like fractions:
    1050/630 + 135/630 = 1050 + 135/630 = 1185/630
  5. 1185/630 simplified gives 79/42
  6. So, 30/18 + 15/70 = 79/42
    In mixed form: 137/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com