Subtract 21/3 from 15/2
1st number: 7 1/2, 2nd number: 7 0/3
15/2 - 21/3 is 1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 3 is 6
Next, find the equivalent fraction of both fractional numbers with denominator 6 - For the 1st fraction, since 2 × 3 = 6,
15/2 = 15 × 3/2 × 3 = 45/6 - Likewise, for the 2nd fraction, since 3 × 2 = 6,
21/3 = 21 × 2/3 × 2 = 42/6 - Subtract the two like fractions:
45/6 - 42/6 = 45 - 42/6 = 3/6 - After reducing the fraction, the answer is 1/2
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