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Subtract 63/42 from 63/8

1st number: 7 7/8, 2nd number: 1 21/42

63/8 - 63/42 is 51/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168
  2. For the 1st fraction, since 8 × 21 = 168,
    63/8 = 63 × 21/8 × 21 = 1323/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    63/42 = 63 × 4/42 × 4 = 252/168
  4. Subtract the two fractions:
    1323/168 - 252/168 = 1323 - 252/168 = 1071/168
  5. After reducing the fraction, the answer is 51/8
  6. In mixed form: 63/8

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