Subtract 27/30 from 6/80
6/80 - 27/30 is -33/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
6/80 = 6 × 3/80 × 3 = 18/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
27/30 = 27 × 8/30 × 8 = 216/240 - Subtract the two like fractions:
18/240 - 216/240 = 18 - 216/240 = -198/240 - After reducing the fraction, the answer is -33/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-27/30 6/80-54/30 6/80-27/60 18/80-27/30 6/80-81/30 6/80-27/90 30/80-27/30 42/80-27/30