Subtract 21/25 from 9/63
9/63 - 21/25 is -122/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 25 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 63 × 25 = 1575,
9/63 = 9 × 25/63 × 25 = 225/1575 - Likewise, for the 2nd fraction, since 25 × 63 = 1575,
21/25 = 21 × 63/25 × 63 = 1323/1575 - Subtract the two like fractions:
225/1575 - 1323/1575 = 225 - 1323/1575 = -1098/1575 - After reducing the fraction, the answer is -122/175
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