Subtract 6/7 from 25/30
25/30 - 6/7 is -1/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
25/30 = 25 × 7/30 × 7 = 175/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
6/7 = 6 × 30/7 × 30 = 180/210 - Subtract the two like fractions:
175/210 - 180/210 = 175 - 180/210 = -5/210 - After reducing the fraction, the answer is -1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-6/7 25/30-12/7 25/60-6/7 25/30-6/14 75/30-6/7 25/30-18/7 25/90-6/7 25/30-6/21 25/30-30/7 25/30-6/35 25/30-42/7 25/30-6/49