Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 40/70 from 60/21

1st number: 2 18/21, 2nd number: 40/70

60/21 - 40/70 is 16/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    60/21 = 60 × 10/21 × 10 = 600/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    40/70 = 40 × 3/70 × 3 = 120/210
  4. Subtract the two fractions:
    600/210 - 120/210 = 600 - 120/210 = 480/210
  5. After reducing the fraction, the answer is 16/7
  6. In mixed form: 22/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com