Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 6/40 from 5/7

5/7 - 6/40 is 79/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 7 × 40 = 280,
    5/7 = 5 × 40/7 × 40 = 200/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    6/40 = 6 × 7/40 × 7 = 42/280
  4. Subtract the two like fractions:
    200/280 - 42/280 = 200 - 42/280 = 158/280
  5. After reducing the fraction, the answer is 79/140

MathStep (Works offline)

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

Related:

© everydaycalculation.com