Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/50 and 12/42

21/50 + 12/42 is 247/350.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 42 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 50 × 21 = 1050,
    21/50 = 21 × 21/50 × 21 = 441/1050
  3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
    12/42 = 12 × 25/42 × 25 = 300/1050
  4. Add the two like fractions:
    441/1050 + 300/1050 = 441 + 300/1050 = 741/1050
  5. 741/1050 simplified gives 247/350
  6. So, 21/50 + 12/42 = 247/350

MathStep (Works offline)

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

Related:

© everydaycalculation.com