Subtract 12/3 from 49/40
1st number: 1 9/40, 2nd number: 4 0/3
49/40 - 12/3 is -111/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
49/40 = 49 × 3/40 × 3 = 147/120 - Likewise, for the 2nd fraction, since 3 × 40 = 120,
12/3 = 12 × 40/3 × 40 = 480/120 - Subtract the two like fractions:
147/120 - 480/120 = 147 - 480/120 = -333/120 - After reducing the fraction, the answer is -111/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40-12/3 49/40-24/3 49/80-12/3 49/40-12/6 49/40-36/3 49/40-12/9 49/40-60/3 49/40-12/15 49/40-84/3 49/40-12/21