Subtract 5/4 from 72/18
1st number: 4 0/18, 2nd number: 1 1/4
72/18 - 5/4 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
72/18 = 72 × 2/18 × 2 = 144/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
5/4 = 5 × 9/4 × 9 = 45/36 - Subtract the two like fractions:
144/36 - 45/36 = 144 - 45/36 = 99/36 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
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