Subtract 27/8 from 40/9
1st number: 4 4/9, 2nd number: 3 3/8
40/9 - 27/8 is 77/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
40/9 = 40 × 8/9 × 8 = 320/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
27/8 = 27 × 9/8 × 9 = 243/72 - Subtract the two like fractions:
320/72 - 243/72 = 320 - 243/72 = 77/72 - In mixed form: 15/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9-27/8 40/9-54/8 40/18-27/8 40/9-27/16 40/9-81/8 40/27-27/8 40/9-27/24 40/45-27/8 40/9-27/40 40/63-27/8 40/9-27/56