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Subtract 9/20 from 45/15

1st number: 3 0/15, 2nd number: 9/20

45/15 - 9/20 is 51/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    45/15 = 45 × 4/15 × 4 = 180/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    9/20 = 9 × 3/20 × 3 = 27/60
  4. Subtract the two like fractions:
    180/60 - 27/60 = 180 - 27/60 = 153/60
  5. After reducing the fraction, the answer is 51/20
  6. In mixed form: 211/20

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