Subtract 84/45 from 72/2
1st number: 36 0/2, 2nd number: 1 39/45
72/2 - 84/45 is 512/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
72/2 = 72 × 45/2 × 45 = 3240/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Subtract the two like fractions:
3240/90 - 168/90 = 3240 - 168/90 = 3072/90 - After reducing the fraction, the answer is 512/15
- In mixed form: 342/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-84/45 72/2-84/90 72/6-84/45 72/10-84/45 72/14-84/45