Subtract 81/10 from 30/3
1st number: 10 0/3, 2nd number: 8 1/10
30/3 - 81/10 is 19/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
30/3 = 30 × 10/3 × 10 = 300/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
81/10 = 81 × 3/10 × 3 = 243/30 - Subtract the two like fractions:
300/30 - 243/30 = 300 - 243/30 = 57/30 - After reducing the fraction, the answer is 19/10
- In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3-81/10 30/6-81/10 30/3-81/20 90/3-81/10 30/9-81/10 30/3-81/30 30/15-81/10 30/3-81/50 30/21-81/10 30/3-81/70