Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/40 and 45/75

28/40 + 45/75 is 13/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 75 is 600

    Next, find the equivalent fraction of both fractional numbers with denominator 600
  2. For the 1st fraction, since 40 × 15 = 600,
    28/40 = 28 × 15/40 × 15 = 420/600
  3. Likewise, for the 2nd fraction, since 75 × 8 = 600,
    45/75 = 45 × 8/75 × 8 = 360/600
  4. Add the two like fractions:
    420/600 + 360/600 = 420 + 360/600 = 780/600
  5. 780/600 simplified gives 13/10
  6. So, 28/40 + 45/75 = 13/10
    In mixed form: 13/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com