Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 42/9 from 10/42

1st number: 10/42, 2nd number: 4 6/9

10/42 - 42/9 is -31/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    10/42 = 10 × 3/42 × 3 = 30/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    42/9 = 42 × 14/9 × 14 = 588/126
  4. Subtract the two fractions:
    30/126 - 588/126 = 30 - 588/126 = -558/126
  5. After reducing the fraction, the answer is -31/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com