Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/35 from 63/42

1st number: 1 21/42, 2nd number: 3/35

63/42 - 3/35 is 99/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 35 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    63/42 = 63 × 5/42 × 5 = 315/210
  3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
    3/35 = 3 × 6/35 × 6 = 18/210
  4. Subtract the two fractions:
    315/210 - 18/210 = 315 - 18/210 = 297/210
  5. After reducing the fraction, the answer is 99/70
  6. In mixed form: 129/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com