Subtract 12/36 from 84/45
1st number: 1 39/45, 2nd number: 12/36
84/45 - 12/36 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
84/45 = 84 × 4/45 × 4 = 336/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
12/36 = 12 × 5/36 × 5 = 60/180 - Subtract the two like fractions:
336/180 - 60/180 = 336 - 60/180 = 276/180 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45-24/36 84/90-12/36 84/45-12/72 84/45-60/36 84/45-84/36