Subtract 5/49 from 25/21
1st number: 1 4/21, 2nd number: 5/49
25/21 - 5/49 is 160/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
25/21 = 25 × 7/21 × 7 = 175/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
5/49 = 5 × 3/49 × 3 = 15/147 - Subtract the two like fractions:
175/147 - 15/147 = 175 - 15/147 = 160/147 - In mixed form: 113/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-5/49 25/21-10/49 25/42-5/49 25/21-5/98 75/21-5/49 25/21-15/49 25/63-5/49 25/21-25/49 25/21-35/49