Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/9 from 10/35

1st number: 10/35, 2nd number: 2 3/9

10/35 - 21/9 is -43/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 9 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 35 × 9 = 315,
    10/35 = 10 × 9/35 × 9 = 90/315
  3. Likewise, for the 2nd fraction, since 9 × 35 = 315,
    21/9 = 21 × 35/9 × 35 = 735/315
  4. Subtract the two like fractions:
    90/315 - 735/315 = 90 - 735/315 = -645/315
  5. After reducing the fraction, the answer is -43/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com