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Subtract 80/7 from 30/45

1st number: 30/45, 2nd number: 11 3/7

30/45 - 80/7 is -226/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 7 is 315
  2. For the 1st fraction, since 45 × 7 = 315,
    30/45 = 30 × 7/45 × 7 = 210/315
  3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
    80/7 = 80 × 45/7 × 45 = 3600/315
  4. Subtract the two fractions:
    210/315 - 3600/315 = 210 - 3600/315 = -3390/315
  5. After reducing the fraction, the answer is -226/21

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