Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/6 and 4/40

1st number: 3 3/6, 2nd number: 4/40

21/6 + 4/40 is 18/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 6 × 20 = 120,
    21/6 = 21 × 20/6 × 20 = 420/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    4/40 = 4 × 3/40 × 3 = 12/120
  4. Add the two like fractions:
    420/120 + 12/120 = 420 + 12/120 = 432/120
  5. 432/120 simplified gives 18/5
  6. So, 21/6 + 4/40 = 18/5
    In mixed form: 33/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com