Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/42 and 6/45

20/42 + 6/45 is 64/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    20/42 = 20 × 15/42 × 15 = 300/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    6/45 = 6 × 14/45 × 14 = 84/630
  4. Add the two like fractions:
    300/630 + 84/630 = 300 + 84/630 = 384/630
  5. 384/630 simplified gives 64/105
  6. So, 20/42 + 6/45 = 64/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com