Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/81 and 18/70

30/81 + 18/70 is 593/945.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 70 is 5670
  2. For the 1st fraction, since 81 × 70 = 5670,
    30/81 = 30 × 70/81 × 70 = 2100/5670
  3. Likewise, for the 2nd fraction, since 70 × 81 = 5670,
    18/70 = 18 × 81/70 × 81 = 1458/5670
  4. Add the two fractions:
    2100/5670 + 1458/5670 = 2100 + 1458/5670 = 3558/5670
  5. 3558/5670 simplified gives 593/945
  6. So, 30/81 + 18/70 = 593/945

MathStep (Works offline)

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

Related:

© everydaycalculation.com