Subtract 63/80 from 18/25
18/25 - 63/80 is -27/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
18/25 = 18 × 16/25 × 16 = 288/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
63/80 = 63 × 5/80 × 5 = 315/400 - Subtract the two like fractions:
288/400 - 315/400 = 288 - 315/400 = -27/400
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