Subtract 36/40 from 7/12
7/12 - 36/40 is -19/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
7/12 = 7 × 10/12 × 10 = 70/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
36/40 = 36 × 3/40 × 3 = 108/120 - Subtract the two like fractions:
70/120 - 108/120 = 70 - 108/120 = -38/120 - After reducing the fraction, the answer is -19/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-36/40 7/12-72/40 7/24-36/40 7/12-36/80 21/12-36/40 7/36-36/40 35/12-36/40 7/60-36/40 49/12-36/40 7/84-36/40