Subtract 32/70 from 81/28
1st number: 2 25/28, 2nd number: 32/70
81/28 - 32/70 is 341/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
32/70 = 32 × 2/70 × 2 = 64/140 - Subtract the two like fractions:
405/140 - 64/140 = 405 - 64/140 = 341/140 - In mixed form: 261/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28-64/70 81/56-32/70 81/28-96/70 81/84-32/70