Subtract 30/63 from 18/75
18/75 - 30/63 is -124/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
18/75 = 18 × 21/75 × 21 = 378/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
30/63 = 30 × 25/63 × 25 = 750/1575 - Subtract the two like fractions:
378/1575 - 750/1575 = 378 - 750/1575 = -372/1575 - After reducing the fraction, the answer is -124/525
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