Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 49/12 from 30/42

1st number: 30/42, 2nd number: 4 1/12

30/42 - 49/12 is -283/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 12 is 84
  2. For the 1st fraction, since 42 × 2 = 84,
    30/42 = 30 × 2/42 × 2 = 60/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    49/12 = 49 × 7/12 × 7 = 343/84
  4. Subtract the two fractions:
    60/84 - 343/84 = 60 - 343/84 = -283/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com