Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 45/42 from 12/10

1st number: 1 2/10, 2nd number: 1 3/42

12/10 - 45/42 is 9/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    12/10 = 12 × 21/10 × 21 = 252/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    45/42 = 45 × 5/42 × 5 = 225/210
  4. Subtract the two fractions:
    252/210 - 225/210 = 252 - 225/210 = 27/210
  5. After reducing the fraction, the answer is 9/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com