Subtract 49/21 from 9/24
1st number: 9/24, 2nd number: 2 7/21
9/24 - 49/21 is -47/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
9/24 = 9 × 7/24 × 7 = 63/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
49/21 = 49 × 8/21 × 8 = 392/168 - Subtract the two like fractions:
63/168 - 392/168 = 63 - 392/168 = -329/168 - After reducing the fraction, the answer is -47/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/24-49/21 9/24-98/21 9/48-49/21 9/24-49/42 27/24-49/21 9/72-49/21 9/24-49/63 45/24-49/21 63/24-49/21