Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 45/12 from 42/10

1st number: 4 2/10, 2nd number: 3 9/12

42/10 - 45/12 is 9/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 10 × 6 = 60,
    42/10 = 42 × 6/10 × 6 = 252/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    45/12 = 45 × 5/12 × 5 = 225/60
  4. Subtract the two like fractions:
    252/60 - 225/60 = 252 - 225/60 = 27/60
  5. After reducing the fraction, the answer is 9/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com