Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/81 from 7/35

7/35 - 3/81 is 22/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 81 is 2835
  2. For the 1st fraction, since 35 × 81 = 2835,
    7/35 = 7 × 81/35 × 81 = 567/2835
  3. Likewise, for the 2nd fraction, since 81 × 35 = 2835,
    3/81 = 3 × 35/81 × 35 = 105/2835
  4. Subtract the two fractions:
    567/2835 - 105/2835 = 567 - 105/2835 = 462/2835
  5. After reducing the fraction, the answer is 22/135

MathStep (Works offline)

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

Related:

© everydaycalculation.com