Subtract 4/28 from 81/5
1st number: 16 1/5, 2nd number: 4/28
81/5 - 4/28 is 562/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
81/5 = 81 × 28/5 × 28 = 2268/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
4/28 = 4 × 5/28 × 5 = 20/140 - Subtract the two like fractions:
2268/140 - 20/140 = 2268 - 20/140 = 2248/140 - After reducing the fraction, the answer is 562/35
- In mixed form: 162/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5-8/28 81/10-4/28 81/5-4/56 81/5-12/28 81/15-4/28 81/5-4/84 81/5-20/28 81/25-4/28 81/35-4/28