Subtract 7/30 from 6/27
6/27 - 7/30 is -1/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
6/27 = 6 × 10/27 × 10 = 60/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
7/30 = 7 × 9/30 × 9 = 63/270 - Subtract the two like fractions:
60/270 - 63/270 = 60 - 63/270 = -3/270 - After reducing the fraction, the answer is -1/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/27-7/30 6/27-14/30 6/54-7/30 6/27-7/60 18/27-7/30 6/27-21/30 6/81-7/30 6/27-7/90 30/27-7/30 6/27-35/30 42/27-7/30 6/27-49/30