Subtract 72/4 from 15/2
1st number: 7 1/2, 2nd number: 18 0/4
15/2 - 72/4 is -21/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 4 is 4
Next, find the equivalent fraction of both fractional numbers with denominator 4 - For the 1st fraction, since 2 × 2 = 4,
15/2 = 15 × 2/2 × 2 = 30/4 - Likewise, for the 2nd fraction, since 4 × 1 = 4,
72/4 = 72 × 1/4 × 1 = 72/4 - Subtract the two like fractions:
30/4 - 72/4 = 30 - 72/4 = -42/4 - After reducing the fraction, the answer is -21/2
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