Subtract 10/21 from 10/2
1st number: 5 0/2, 2nd number: 10/21
10/2 - 10/21 is 95/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
10/2 = 10 × 21/2 × 21 = 210/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
10/21 = 10 × 2/21 × 2 = 20/42 - Subtract the two like fractions:
210/42 - 20/42 = 210 - 20/42 = 190/42 - After reducing the fraction, the answer is 95/21
- In mixed form: 411/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2-10/21 10/2-20/21 10/4-10/21 10/2-10/42 30/2-10/21 10/2-30/21 10/6-10/21 10/2-10/63 50/2-10/21 10/2-50/21 70/2-10/21 10/2-70/21 10/14-10/21