Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 25/40 and 42/63

25/40 + 42/63 is 31/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    25/40 = 25 × 63/40 × 63 = 1575/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    42/63 = 42 × 40/63 × 40 = 1680/2520
  4. Add the two like fractions:
    1575/2520 + 1680/2520 = 1575 + 1680/2520 = 3255/2520
  5. 3255/2520 simplified gives 31/24
  6. So, 25/40 + 42/63 = 31/24
    In mixed form: 17/24

MathStep (Works offline)

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

Related:

© everydaycalculation.com