Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/64 and 20/42

30/64 + 20/42 is 635/672.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 42 is 1344

    Next, find the equivalent fraction of both fractional numbers with denominator 1344
  2. For the 1st fraction, since 64 × 21 = 1344,
    30/64 = 30 × 21/64 × 21 = 630/1344
  3. Likewise, for the 2nd fraction, since 42 × 32 = 1344,
    20/42 = 20 × 32/42 × 32 = 640/1344
  4. Add the two like fractions:
    630/1344 + 640/1344 = 630 + 640/1344 = 1270/1344
  5. 1270/1344 simplified gives 635/672
  6. So, 30/64 + 20/42 = 635/672

MathStep (Works offline)

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

Related:

© everydaycalculation.com