Subtract 7/30 from 6/7
6/7 - 7/30 is 131/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
6/7 = 6 × 30/7 × 30 = 180/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
7/30 = 7 × 7/30 × 7 = 49/210 - Subtract the two like fractions:
180/210 - 49/210 = 180 - 49/210 = 131/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-7/30 6/7-14/30 6/14-7/30 6/7-7/60 18/7-7/30 6/7-21/30 6/21-7/30 6/7-7/90 30/7-7/30 6/7-35/30 6/35-7/30 42/7-7/30 6/7-49/30 6/49-7/30