Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 10/20 from 42/9

1st number: 4 6/9, 2nd number: 10/20

42/9 - 10/20 is 25/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    42/9 = 42 × 20/9 × 20 = 840/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    10/20 = 10 × 9/20 × 9 = 90/180
  4. Subtract the two like fractions:
    840/180 - 90/180 = 840 - 90/180 = 750/180
  5. After reducing the fraction, the answer is 25/6
  6. In mixed form: 41/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com