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Subtract 3/45 from 12/7

1st number: 1 5/7, 2nd number: 3/45

12/7 - 3/45 is 173/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    12/7 = 12 × 45/7 × 45 = 540/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    3/45 = 3 × 7/45 × 7 = 21/315
  4. Subtract the two like fractions:
    540/315 - 21/315 = 540 - 21/315 = 519/315
  5. After reducing the fraction, the answer is 173/105
  6. In mixed form: 168/105

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