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Subtract 21/45 from 15/6

1st number: 2 3/6, 2nd number: 21/45

15/6 - 21/45 is 61/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 45 is 90
  2. For the 1st fraction, since 6 × 15 = 90,
    15/6 = 15 × 15/6 × 15 = 225/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    21/45 = 21 × 2/45 × 2 = 42/90
  4. Subtract the two fractions:
    225/90 - 42/90 = 225 - 42/90 = 183/90
  5. After reducing the fraction, the answer is 61/30
  6. In mixed form: 21/30

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