Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 10/42 and 21/4

1st number: 10/42, 2nd number: 5 1/4

10/42 + 21/4 is 461/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    10/42 = 10 × 2/42 × 2 = 20/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    21/4 = 21 × 21/4 × 21 = 441/84
  4. Add the two like fractions:
    20/84 + 441/84 = 20 + 441/84 = 461/84
  5. So, 10/42 + 21/4 = 461/84
    In mixed form: 541/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com