Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/18 from 42/5

1st number: 8 2/5, 2nd number: 3 16/18

42/5 - 70/18 is 203/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 5 × 18 = 90,
    42/5 = 42 × 18/5 × 18 = 756/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    70/18 = 70 × 5/18 × 5 = 350/90
  4. Subtract the two like fractions:
    756/90 - 350/90 = 756 - 350/90 = 406/90
  5. After reducing the fraction, the answer is 203/45
  6. In mixed form: 423/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com