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Subtract 1/42 from 21/3

1st number: 7 0/3, 2nd number: 1/42

21/3 - 1/42 is 293/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 3 × 14 = 42,
    21/3 = 21 × 14/3 × 14 = 294/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    1/42 = 1 × 1/42 × 1 = 1/42
  4. Subtract the two like fractions:
    294/42 - 1/42 = 294 - 1/42 = 293/42
  5. In mixed form: 641/42

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