Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 7/63 from 90/40

1st number: 2 10/40, 2nd number: 7/63

90/40 - 7/63 is 77/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    90/40 = 90 × 63/40 × 63 = 5670/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    7/63 = 7 × 40/63 × 40 = 280/2520
  4. Subtract the two fractions:
    5670/2520 - 280/2520 = 5670 - 280/2520 = 5390/2520
  5. After reducing the fraction, the answer is 77/36
  6. In mixed form: 25/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com