Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/4 and 40/7

1st number: 10 2/4, 2nd number: 5 5/7

42/4 + 40/7 is 227/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 4 × 7 = 28,
    42/4 = 42 × 7/4 × 7 = 294/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    40/7 = 40 × 4/7 × 4 = 160/28
  4. Add the two like fractions:
    294/28 + 160/28 = 294 + 160/28 = 454/28
  5. 454/28 simplified gives 227/14
  6. So, 42/4 + 40/7 = 227/14
    In mixed form: 163/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com