Subtract 45/63 from 54/80
54/80 - 45/63 is -11/280.
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,
54/80 = 54 × 63/80 × 63 = 3402/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
45/63 = 45 × 80/63 × 80 = 3600/5040 - Subtract the two like fractions:
3402/5040 - 3600/5040 = 3402 - 3600/5040 = -198/5040 - After reducing the fraction, the answer is -11/280
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