Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 3/90 and 3/70

3/90 + 3/70 is 8/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    3/90 = 3 × 7/90 × 7 = 21/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    3/70 = 3 × 9/70 × 9 = 27/630
  4. Add the two like fractions:
    21/630 + 27/630 = 21 + 27/630 = 48/630
  5. 48/630 simplified gives 8/105
  6. So, 3/90 + 3/70 = 8/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com