Subtract 21/63 from 84/49
1st number: 1 35/49, 2nd number: 21/63
84/49 - 21/63 is 29/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
84/49 = 84 × 9/49 × 9 = 756/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
21/63 = 21 × 7/63 × 7 = 147/441 - Subtract the two like fractions:
756/441 - 147/441 = 756 - 147/441 = 609/441 - After reducing the fraction, the answer is 29/21
- In mixed form: 18/21
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