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Subtract 5/20 from 21/3

1st number: 7 0/3, 2nd number: 5/20

21/3 - 5/20 is 27/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 3 × 20 = 60,
    21/3 = 21 × 20/3 × 20 = 420/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    5/20 = 5 × 3/20 × 3 = 15/60
  4. Subtract the two like fractions:
    420/60 - 15/60 = 420 - 15/60 = 405/60
  5. After reducing the fraction, the answer is 27/4
  6. In mixed form: 63/4

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