Subtract 18/60 from 15/63
15/63 - 18/60 is -13/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
15/63 = 15 × 20/63 × 20 = 300/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
18/60 = 18 × 21/60 × 21 = 378/1260 - Subtract the two like fractions:
300/1260 - 378/1260 = 300 - 378/1260 = -78/1260 - After reducing the fraction, the answer is -13/210
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