Subtract 18/70 from 81/3
1st number: 27 0/3, 2nd number: 18/70
81/3 - 18/70 is 936/35.
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,
18/70 = 18 × 3/70 × 3 = 54/210 - Subtract the two like fractions:
5670/210 - 54/210 = 5670 - 54/210 = 5616/210 - After reducing the fraction, the answer is 936/35
- In mixed form: 2626/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3-36/70 81/6-18/70 81/3-54/70 81/9-18/70 81/3-90/70 81/15-18/70 81/21-18/70