Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/21 and 48/40

1st number: 4/21, 2nd number: 1 8/40

4/21 + 48/40 is 146/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 21 × 40 = 840,
    4/21 = 4 × 40/21 × 40 = 160/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    48/40 = 48 × 21/40 × 21 = 1008/840
  4. Add the two like fractions:
    160/840 + 1008/840 = 160 + 1008/840 = 1168/840
  5. 1168/840 simplified gives 146/105
  6. So, 4/21 + 48/40 = 146/105
    In mixed form: 141/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com