Subtract 21/35 from 49/21
1st number: 2 7/21, 2nd number: 21/35
49/21 - 21/35 is 26/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
49/21 = 49 × 5/21 × 5 = 245/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
21/35 = 21 × 3/35 × 3 = 63/105 - Subtract the two like fractions:
245/105 - 63/105 = 245 - 63/105 = 182/105 - After reducing the fraction, the answer is 26/15
- In mixed form: 111/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-21/35 49/21-42/35 49/42-21/35 49/21-21/70 49/21-63/35 49/63-21/35