Subtract 27/35 from 45/28
1st number: 1 17/28, 2nd number: 27/35
45/28 - 27/35 is 117/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
45/28 = 45 × 5/28 × 5 = 225/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
27/35 = 27 × 4/35 × 4 = 108/140 - Subtract the two like fractions:
225/140 - 108/140 = 225 - 108/140 = 117/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-27/35 45/28-54/35 45/56-27/35 45/28-27/70 45/28-81/35 45/84-27/35