Subtract 7/30 from 9/27
9/27 - 7/30 is 1/10.
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,
9/27 = 9 × 10/27 × 10 = 90/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
7/30 = 7 × 9/30 × 9 = 63/270 - Subtract the two like fractions:
90/270 - 63/270 = 90 - 63/270 = 27/270 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/27-7/30 9/27-14/30 9/54-7/30 9/27-7/60 9/27-21/30 9/81-7/30 9/27-7/90 45/27-7/30 9/27-35/30 63/27-7/30 9/27-49/30