Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 21/9 from 24/7

1st number: 3 3/7, 2nd number: 2 3/9

24/7 - 21/9 is 23/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    24/7 = 24 × 9/7 × 9 = 216/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    21/9 = 21 × 7/9 × 7 = 147/63
  4. Subtract the two fractions:
    216/63 - 147/63 = 216 - 147/63 = 69/63
  5. After reducing the fraction, the answer is 23/21
  6. In mixed form: 12/21

Related:

Use fraction calculator with our all-in-one calculator app: Download for Android, Download for iOS

© everydaycalculation.com