Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/10 and 1/4

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

21/10 + 1/4 is 47/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 4 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 10 × 2 = 20,
    21/10 = 21 × 2/10 × 2 = 42/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    1/4 = 1 × 5/4 × 5 = 5/20
  4. Add the two like fractions:
    42/20 + 5/20 = 42 + 5/20 = 47/20
  5. So, 21/10 + 1/4 = 47/20
    In mixed form: 27/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com