Subtract 40/8 from 25/30
1st number: 25/30, 2nd number: 5 0/8
25/30 - 40/8 is -25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
25/30 = 25 × 4/30 × 4 = 100/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
40/8 = 40 × 15/8 × 15 = 600/120 - Subtract the two like fractions:
100/120 - 600/120 = 100 - 600/120 = -500/120 - After reducing the fraction, the answer is -25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-40/8 25/30-80/8 25/60-40/8 25/30-40/16 75/30-40/8 25/90-40/8 25/30-40/24 25/30-40/56