Subtract 14/21 from 25/30
25/30 - 14/21 is 1/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 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 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Subtract the two like fractions:
175/210 - 140/210 = 175 - 140/210 = 35/210 - After reducing the fraction, the answer is 1/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-14/21 25/30-28/21 25/60-14/21 25/30-14/42 75/30-14/21 25/30-42/21 25/90-14/21 25/30-14/63 25/30-70/21 25/30-98/21