Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 8/30 from 5/42

5/42 - 8/30 is -31/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 30 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    5/42 = 5 × 5/42 × 5 = 25/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    8/30 = 8 × 7/30 × 7 = 56/210
  4. Subtract the two fractions:
    25/210 - 56/210 = 25 - 56/210 = -31/210

MathStep (Works offline)

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

Related:

© everydaycalculation.com