Subtract 10/49 from 50/21
1st number: 2 8/21, 2nd number: 10/49
50/21 - 10/49 is 320/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
50/21 = 50 × 7/21 × 7 = 350/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
10/49 = 10 × 3/49 × 3 = 30/147 - Subtract the two like fractions:
350/147 - 30/147 = 350 - 30/147 = 320/147 - In mixed form: 226/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-20/49 50/42-10/49 50/21-10/98 50/21-30/49 50/63-10/49 50/21-50/49 50/21-70/49