Subtract 5/80 from 49/21
1st number: 2 7/21, 2nd number: 5/80
49/21 - 5/80 is 109/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
49/21 = 49 × 80/21 × 80 = 3920/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
5/80 = 5 × 21/80 × 21 = 105/1680 - Subtract the two like fractions:
3920/1680 - 105/1680 = 3920 - 105/1680 = 3815/1680 - After reducing the fraction, the answer is 109/48
- In mixed form: 213/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-5/80 49/21-10/80 49/42-5/80 49/21-15/80 49/63-5/80 49/21-25/80 49/21-35/80