Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 21/63 from 7/2

1st number: 3 1/2, 2nd number: 21/63

7/2 - 21/63 is 19/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 63 is 126
  2. For the 1st fraction, since 2 × 63 = 126,
    7/2 = 7 × 63/2 × 63 = 441/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    21/63 = 21 × 2/63 × 2 = 42/126
  4. Subtract the two fractions:
    441/126 - 42/126 = 441 - 42/126 = 399/126
  5. After reducing the fraction, the answer is 19/6
  6. In mixed form: 31/6

Related:

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

© everydaycalculation.com