Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 6/90 from 4/42

4/42 - 6/90 is 1/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    4/42 = 4 × 15/42 × 15 = 60/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    6/90 = 6 × 7/90 × 7 = 42/630
  4. Subtract the two fractions:
    60/630 - 42/630 = 60 - 42/630 = 18/630
  5. After reducing the fraction, the answer is 1/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com