Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/10 from 6/72

1st number: 6/72, 2nd number: 2 1/10

6/72 - 21/10 is -121/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 10 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    6/72 = 6 × 5/72 × 5 = 30/360
  3. Likewise, for the 2nd fraction, since 10 × 36 = 360,
    21/10 = 21 × 36/10 × 36 = 756/360
  4. Subtract the two fractions:
    30/360 - 756/360 = 30 - 756/360 = -726/360
  5. After reducing the fraction, the answer is -121/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com