Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 2/40 from 63/42

1st number: 1 21/42, 2nd number: 2/40

63/42 - 2/40 is 29/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840
  2. For the 1st fraction, since 42 × 20 = 840,
    63/42 = 63 × 20/42 × 20 = 1260/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    2/40 = 2 × 21/40 × 21 = 42/840
  4. Subtract the two fractions:
    1260/840 - 42/840 = 1260 - 42/840 = 1218/840
  5. After reducing the fraction, the answer is 29/20
  6. In mixed form: 19/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com