Subtract 12/9 from 36/45
1st number: 36/45, 2nd number: 1 3/9
36/45 - 12/9 is -8/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
36/45 = 36 × 1/45 × 1 = 36/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
12/9 = 12 × 5/9 × 5 = 60/45 - Subtract the two like fractions:
36/45 - 60/45 = 36 - 60/45 = -24/45 - After reducing the fraction, the answer is -8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45-12/9 36/45-24/9 36/90-12/9 36/45-12/18 36/45-36/9 36/45-12/27 36/45-60/9 36/45-12/45 36/45-84/9 36/45-12/63