Subtract 21/63 from 2/8
2/8 - 21/63 is -1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
2/8 = 2 × 63/8 × 63 = 126/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Subtract the two like fractions:
126/504 - 168/504 = 126 - 168/504 = -42/504 - After reducing the fraction, the answer is -1/12
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