Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/40 and 60/42

1st number: 15/40, 2nd number: 1 18/42

15/40 + 60/42 is 101/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 42 is 840
  2. For the 1st fraction, since 40 × 21 = 840,
    15/40 = 15 × 21/40 × 21 = 315/840
  3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
    60/42 = 60 × 20/42 × 20 = 1200/840
  4. Add the two fractions:
    315/840 + 1200/840 = 315 + 1200/840 = 1515/840
  5. 1515/840 simplified gives 101/56
  6. So, 15/40 + 60/42 = 101/56
    In mixed form: 145/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com