Subtract 72/45 from 36/2
1st number: 18 0/2, 2nd number: 1 27/45
36/2 - 72/45 is 82/5.
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,
36/2 = 36 × 45/2 × 45 = 1620/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Subtract the two like fractions:
1620/90 - 144/90 = 1620 - 144/90 = 1476/90 - After reducing the fraction, the answer is 82/5
- In mixed form: 162/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/2-72/45 36/4-72/45 36/2-72/90 36/6-72/45 36/10-72/45 36/14-72/45