Subtract 6/21 from 3/9
3/9 - 6/21 is 1/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
3/9 = 3 × 7/9 × 7 = 21/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
6/21 = 6 × 3/21 × 3 = 18/63 - Subtract the two like fractions:
21/63 - 18/63 = 21 - 18/63 = 3/63 - After reducing the fraction, the answer is 1/21
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