Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/40 and 30/42

1st number: 1 5/40, 2nd number: 30/42

45/40 + 30/42 is 103/56.

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,
    45/40 = 45 × 21/40 × 21 = 945/840
  3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
    30/42 = 30 × 20/42 × 20 = 600/840
  4. Add the two fractions:
    945/840 + 600/840 = 945 + 600/840 = 1545/840
  5. 1545/840 simplified gives 103/56
  6. So, 45/40 + 30/42 = 103/56
    In mixed form: 147/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com