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Subtract 12/45 from 50/42

1st number: 1 8/42, 2nd number: 12/45

50/42 - 12/45 is 97/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    50/42 = 50 × 15/42 × 15 = 750/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    12/45 = 12 × 14/45 × 14 = 168/630
  4. Subtract the two like fractions:
    750/630 - 168/630 = 750 - 168/630 = 582/630
  5. After reducing the fraction, the answer is 97/105

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