Subtract 8/30 from 80/40
1st number: 2 0/40, 2nd number: 8/30
80/40 - 8/30 is 26/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
80/40 = 80 × 3/40 × 3 = 240/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
8/30 = 8 × 4/30 × 4 = 32/120 - Subtract the two like fractions:
240/120 - 32/120 = 240 - 32/120 = 208/120 - After reducing the fraction, the answer is 26/15
- In mixed form: 111/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/40-16/30 80/40-8/60 80/40-24/30 80/40-8/90 80/40-40/30 80/40-56/30