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Subtract 45/30 from 3/28

1st number: 3/28, 2nd number: 1 15/30

3/28 - 45/30 is -39/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420
  2. For the 1st fraction, since 28 × 15 = 420,
    3/28 = 3 × 15/28 × 15 = 45/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    45/30 = 45 × 14/30 × 14 = 630/420
  4. Subtract the two fractions:
    45/420 - 630/420 = 45 - 630/420 = -585/420
  5. After reducing the fraction, the answer is -39/28

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