Subtract 50/70 from 81/3
1st number: 27 0/3, 2nd number: 50/70
81/3 - 50/70 is 184/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
81/3 = 81 × 70/3 × 70 = 5670/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
50/70 = 50 × 3/70 × 3 = 150/210 - Subtract the two like fractions:
5670/210 - 150/210 = 5670 - 150/210 = 5520/210 - After reducing the fraction, the answer is 184/7
- In mixed form: 262/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6-50/70 81/9-50/70 81/15-50/70 81/21-50/70