Subtract 81/70 from 8/3
1st number: 2 2/3, 2nd number: 1 11/70
8/3 - 81/70 is 317/210.
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,
8/3 = 8 × 70/3 × 70 = 560/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
81/70 = 81 × 3/70 × 3 = 243/210 - Subtract the two like fractions:
560/210 - 243/210 = 560 - 243/210 = 317/210 - In mixed form: 1107/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/3-81/70 8/6-81/70 24/3-81/70 8/9-81/70 40/3-81/70 8/15-81/70 56/3-81/70 8/21-81/70