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Subtract 10/45 from 1/7

1/7 - 10/45 is -5/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315
  2. For the 1st fraction, since 7 × 45 = 315,
    1/7 = 1 × 45/7 × 45 = 45/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    10/45 = 10 × 7/45 × 7 = 70/315
  4. Subtract the two fractions:
    45/315 - 70/315 = 45 - 70/315 = -25/315
  5. After reducing the fraction, the answer is -5/63

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