Subtract 28/63 from 27/80
27/80 - 28/63 is -77/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
27/80 = 27 × 63/80 × 63 = 1701/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
28/63 = 28 × 80/63 × 80 = 2240/5040 - Subtract the two like fractions:
1701/5040 - 2240/5040 = 1701 - 2240/5040 = -539/5040 - After reducing the fraction, the answer is -77/720
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