Subtract 40/9 from 27/40
1st number: 27/40, 2nd number: 4 4/9
27/40 - 40/9 is -1357/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 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 9 × 40 = 360,
40/9 = 40 × 40/9 × 40 = 1600/360 - Subtract the two like fractions:
243/360 - 1600/360 = 243 - 1600/360 = -1357/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-40/9 27/40-80/9 27/80-40/9 27/40-40/18 81/40-40/9 27/40-40/27 27/40-40/45 27/40-40/63