Subtract 49/21 from 49/10
1st number: 4 9/10, 2nd number: 2 7/21
49/10 - 49/21 is 77/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
49/10 = 49 × 21/10 × 21 = 1029/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
49/21 = 49 × 10/21 × 10 = 490/210 - Subtract the two like fractions:
1029/210 - 490/210 = 1029 - 490/210 = 539/210 - After reducing the fraction, the answer is 77/30
- In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/10-49/21 49/10-98/21 49/20-49/21 49/10-49/42 49/30-49/21 49/10-49/63 49/50-49/21 49/70-49/21