Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/2 and 4/40

1st number: 10 1/2, 2nd number: 4/40

21/2 + 4/40 is 53/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 2 × 20 = 40,
    21/2 = 21 × 20/2 × 20 = 420/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    4/40 = 4 × 1/40 × 1 = 4/40
  4. Add the two like fractions:
    420/40 + 4/40 = 420 + 4/40 = 424/40
  5. 424/40 simplified gives 53/5
  6. So, 21/2 + 4/40 = 53/5
    In mixed form: 103/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com