Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/42 and 9/40

5/42 + 9/40 is 289/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 42 × 20 = 840,
    5/42 = 5 × 20/42 × 20 = 100/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    9/40 = 9 × 21/40 × 21 = 189/840
  4. Add the two like fractions:
    100/840 + 189/840 = 100 + 189/840 = 289/840
  5. So, 5/42 + 9/40 = 289/840

MathStep (Works offline)

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

Related:

© everydaycalculation.com