Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 4/40 from 35/42

35/42 - 4/40 is 11/15.

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,
    35/42 = 35 × 20/42 × 20 = 700/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    4/40 = 4 × 21/40 × 21 = 84/840
  4. Subtract the two fractions:
    700/840 - 84/840 = 700 - 84/840 = 616/840
  5. After reducing the fraction, the answer is 11/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com