Subtract 12/40 from 8/3
1st number: 2 2/3, 2nd number: 12/40
8/3 - 12/40 is 71/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
8/3 = 8 × 40/3 × 40 = 320/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Subtract the two like fractions:
320/120 - 36/120 = 320 - 36/120 = 284/120 - After reducing the fraction, the answer is 71/30
- In mixed form: 211/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/3-12/40 8/3-24/40 8/6-12/40 8/3-12/80 24/3-12/40 8/3-36/40 8/9-12/40 40/3-12/40 8/3-60/40 8/15-12/40 56/3-12/40 8/3-84/40 8/21-12/40