Subtract 35/18 from 27/40
1st number: 27/40, 2nd number: 1 17/18
27/40 - 35/18 is -457/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
27/40 = 27 × 9/40 × 9 = 243/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
35/18 = 35 × 20/18 × 20 = 700/360 - Subtract the two like fractions:
243/360 - 700/360 = 243 - 700/360 = -457/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-35/18 27/40-70/18 27/80-35/18 27/40-35/36 81/40-35/18 27/40-35/54 27/40-35/90