Subtract 81/70 from 50/14
1st number: 3 8/14, 2nd number: 1 11/70
50/14 - 81/70 is 169/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
50/14 = 50 × 5/14 × 5 = 250/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
81/70 = 81 × 1/70 × 1 = 81/70 - Subtract the two like fractions:
250/70 - 81/70 = 250 - 81/70 = 169/70 - In mixed form: 229/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28-81/70 50/42-81/70 50/70-81/70 50/98-81/70