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Subtract 45/30 from 72/4

1st number: 18 0/4, 2nd number: 1 15/30

72/4 - 45/30 is 33/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 4 × 15 = 60,
    72/4 = 72 × 15/4 × 15 = 1080/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    45/30 = 45 × 2/30 × 2 = 90/60
  4. Subtract the two like fractions:
    1080/60 - 90/60 = 1080 - 90/60 = 990/60
  5. After reducing the fraction, the answer is 33/2
  6. In mixed form: 161/2

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