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Subtract 30/63 from 40/15

1st number: 2 10/15, 2nd number: 30/63

40/15 - 30/63 is 46/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    40/15 = 40 × 21/15 × 21 = 840/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    30/63 = 30 × 5/63 × 5 = 150/315
  4. Subtract the two fractions:
    840/315 - 150/315 = 840 - 150/315 = 690/315
  5. After reducing the fraction, the answer is 46/21
  6. In mixed form: 24/21

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