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Subtract 1/63 from 21/5

1st number: 4 1/5, 2nd number: 1/63

21/5 - 1/63 is 1318/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 5 × 63 = 315,
    21/5 = 21 × 63/5 × 63 = 1323/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    1/63 = 1 × 5/63 × 5 = 5/315
  4. Subtract the two like fractions:
    1323/315 - 5/315 = 1323 - 5/315 = 1318/315
  5. In mixed form: 458/315

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