Subtract 9/4 from 49/21
1st number: 2 7/21, 2nd number: 2 1/4
49/21 - 9/4 is 1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
49/21 = 49 × 4/21 × 4 = 196/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
9/4 = 9 × 21/4 × 21 = 189/84 - Subtract the two like fractions:
196/84 - 189/84 = 196 - 189/84 = 7/84 - After reducing the fraction, the answer is 1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-9/4 49/21-18/4 49/42-9/4 49/21-9/8 49/21-27/4 49/63-9/4 49/21-9/12 49/21-45/4 49/21-9/20 49/21-63/4 49/21-9/28