Subtract 3/40 from 72/4
1st number: 18 0/4, 2nd number: 3/40
72/4 - 3/40 is 717/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
72/4 = 72 × 10/4 × 10 = 720/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
3/40 = 3 × 1/40 × 1 = 3/40 - Subtract the two like fractions:
720/40 - 3/40 = 720 - 3/40 = 717/40 - In mixed form: 1737/40
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