Subtract 9/70 from 81/5
1st number: 16 1/5, 2nd number: 9/70
81/5 - 9/70 is 225/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
81/5 = 81 × 14/5 × 14 = 1134/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70 - Subtract the two like fractions:
1134/70 - 9/70 = 1134 - 9/70 = 1125/70 - After reducing the fraction, the answer is 225/14
- In mixed form: 161/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5-18/70 81/10-9/70 81/5-27/70 81/15-9/70 81/5-45/70 81/25-9/70 81/5-63/70 81/35-9/70