Subtract 7/21 from 21/14
1st number: 1 7/14, 2nd number: 7/21
21/14 - 7/21 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 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 21 × 2 = 42,
7/21 = 7 × 2/21 × 2 = 14/42 - Subtract the two like fractions:
63/42 - 14/42 = 63 - 14/42 = 49/42 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
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