Subtract 4/30 from 6/7
6/7 - 4/30 is 76/105.
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,
4/30 = 4 × 7/30 × 7 = 28/210 - Subtract the two like fractions:
180/210 - 28/210 = 180 - 28/210 = 152/210 - After reducing the fraction, the answer is 76/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-4/30 6/7-8/30 6/14-4/30 6/7-4/60 18/7-4/30 6/7-12/30 6/21-4/30 6/7-4/90 30/7-4/30 6/7-20/30 6/35-4/30 42/7-4/30 6/7-28/30 6/49-4/30