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Subtract 28/30 from 15/10

1st number: 1 5/10, 2nd number: 28/30

15/10 - 28/30 is 17/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 30 is 30
  2. For the 1st fraction, since 10 × 3 = 30,
    15/10 = 15 × 3/10 × 3 = 45/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    28/30 = 28 × 1/30 × 1 = 28/30
  4. Subtract the two fractions:
    45/30 - 28/30 = 45 - 28/30 = 17/30

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