Subtract 15/3 from 21/14
1st number: 1 7/14, 2nd number: 5 0/3
21/14 - 15/3 is -7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
21/14 = 21 × 3/14 × 3 = 63/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
15/3 = 15 × 14/3 × 14 = 210/42 - Subtract the two like fractions:
63/42 - 210/42 = 63 - 210/42 = -147/42 - After reducing the fraction, the answer is -7/2
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