Subtract 25/18 from 4/8
1st number: 4/8, 2nd number: 1 7/18
4/8 - 25/18 is -8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
4/8 = 4 × 9/8 × 9 = 36/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
25/18 = 25 × 4/18 × 4 = 100/72 - Subtract the two like fractions:
36/72 - 100/72 = 36 - 100/72 = -64/72 - After reducing the fraction, the answer is -8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-50/18 4/16-25/18 4/8-25/36 12/8-25/18 4/8-75/18 4/24-25/18 4/8-25/54 20/8-25/18 4/40-25/18 4/8-25/90 28/8-25/18 4/56-25/18