Subtract 18/63 from 21/25
21/25 - 18/63 is 97/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
21/25 = 21 × 63/25 × 63 = 1323/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
18/63 = 18 × 25/63 × 25 = 450/1575 - Subtract the two like fractions:
1323/1575 - 450/1575 = 1323 - 450/1575 = 873/1575 - After reducing the fraction, the answer is 97/175
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