Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 1/40 from 21/3

1st number: 7 0/3, 2nd number: 1/40

21/3 - 1/40 is 279/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 40 is 120
  2. For the 1st fraction, since 3 × 40 = 120,
    21/3 = 21 × 40/3 × 40 = 840/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    1/40 = 1 × 3/40 × 3 = 3/120
  4. Subtract the two fractions:
    840/120 - 3/120 = 840 - 3/120 = 837/120
  5. After reducing the fraction, the answer is 279/40
  6. In mixed form: 639/40

Related:

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

© everydaycalculation.com