Subtract 18/63 from 27/80
27/80 - 18/63 is 29/560.
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,
18/63 = 18 × 80/63 × 80 = 1440/5040 - Subtract the two like fractions:
1701/5040 - 1440/5040 = 1701 - 1440/5040 = 261/5040 - After reducing the fraction, the answer is 29/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80-18/63 27/80-36/63 81/80-18/63 27/80-54/63 27/80-90/63