Subtract 81/5 from 30/14
1st number: 2 2/14, 2nd number: 16 1/5
30/14 - 81/5 is -492/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
30/14 = 30 × 5/14 × 5 = 150/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
81/5 = 81 × 14/5 × 14 = 1134/70 - Subtract the two like fractions:
150/70 - 1134/70 = 150 - 1134/70 = -984/70 - After reducing the fraction, the answer is -492/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-81/5 30/28-81/5 30/14-81/10 90/14-81/5 30/42-81/5 30/14-81/15 30/70-81/5 30/14-81/25 30/98-81/5 30/14-81/35