Subtract 10/80 from 30/10
1st number: 3 0/10, 2nd number: 10/80
30/10 - 10/80 is 23/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
30/10 = 30 × 8/10 × 8 = 240/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
10/80 = 10 × 1/80 × 1 = 10/80 - Subtract the two like fractions:
240/80 - 10/80 = 240 - 10/80 = 230/80 - After reducing the fraction, the answer is 23/8
- In mixed form: 27/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-10/80 30/10-20/80 30/20-10/80 90/10-10/80 30/10-30/80 30/10-50/80 30/50-10/80 30/10-70/80 30/70-10/80