Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 42/20 from 4/15

1st number: 4/15, 2nd number: 2 2/20

4/15 - 42/20 is -11/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    4/15 = 4 × 4/15 × 4 = 16/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    42/20 = 42 × 3/20 × 3 = 126/60
  4. Subtract the two fractions:
    16/60 - 126/60 = 16 - 126/60 = -110/60
  5. After reducing the fraction, the answer is -11/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com