Subtract 50/21 from 49/12
1st number: 4 1/12, 2nd number: 2 8/21
49/12 - 50/21 is 143/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
49/12 = 49 × 7/12 × 7 = 343/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
50/21 = 50 × 4/21 × 4 = 200/84 - Subtract the two like fractions:
343/84 - 200/84 = 343 - 200/84 = 143/84 - In mixed form: 159/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-50/21 49/24-50/21 49/12-50/42 49/36-50/21 49/12-50/63 49/60-50/21 49/84-50/21