Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/42 and 9/80

9/42 + 9/80 is 183/560.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 42 × 40 = 1680,
    9/42 = 9 × 40/42 × 40 = 360/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    9/80 = 9 × 21/80 × 21 = 189/1680
  4. Add the two like fractions:
    360/1680 + 189/1680 = 360 + 189/1680 = 549/1680
  5. 549/1680 simplified gives 183/560
  6. So, 9/42 + 9/80 = 183/560

MathStep (Works offline)

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

Related:

© everydaycalculation.com