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Subtract 1/45 from 75/42

1st number: 1 33/42, 2nd number: 1/45

75/42 - 1/45 is 1111/630.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    75/42 = 75 × 15/42 × 15 = 1125/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    1/45 = 1 × 14/45 × 14 = 14/630
  4. Subtract the two fractions:
    1125/630 - 14/630 = 1125 - 14/630 = 1111/630
  5. In mixed form: 1481/630

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