Subtract 21/14 from 5/4
1st number: 1 1/4, 2nd number: 1 7/14
5/4 - 21/14 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
5/4 = 5 × 7/4 × 7 = 35/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
21/14 = 21 × 2/14 × 2 = 42/28 - Subtract the two like fractions:
35/28 - 42/28 = 35 - 42/28 = -7/28 - After reducing the fraction, the answer is -1/4
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