Subtract 21/63 from 25/21
1st number: 1 4/21, 2nd number: 21/63
25/21 - 21/63 is 6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
25/21 = 25 × 3/21 × 3 = 75/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
21/63 = 21 × 1/63 × 1 = 21/63 - Subtract the two like fractions:
75/63 - 21/63 = 75 - 21/63 = 54/63 - After reducing the fraction, the answer is 6/7
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