Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/28 and 10/40

1st number: 1 14/28, 2nd number: 10/40

42/28 + 10/40 is 7/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 28 × 10 = 280,
    42/28 = 42 × 10/28 × 10 = 420/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    10/40 = 10 × 7/40 × 7 = 70/280
  4. Add the two like fractions:
    420/280 + 70/280 = 420 + 70/280 = 490/280
  5. 490/280 simplified gives 7/4
  6. So, 42/28 + 10/40 = 7/4
    In mixed form: 13/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com