Subtract 30/21 from 27/63
1st number: 27/63, 2nd number: 1 9/21
27/63 - 30/21 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
27/63 = 27 × 1/63 × 1 = 27/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
30/21 = 30 × 3/21 × 3 = 90/63 - Subtract the two like fractions:
27/63 - 90/63 = 27 - 90/63 = -63/63 - After reducing the fraction, the answer is -1/1
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