Subtract 72/80 from 27/2
1st number: 13 1/2, 2nd number: 72/80
27/2 - 72/80 is 63/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
27/2 = 27 × 40/2 × 40 = 1080/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Subtract the two like fractions:
1080/80 - 72/80 = 1080 - 72/80 = 1008/80 - After reducing the fraction, the answer is 63/5
- In mixed form: 123/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2-72/80 27/4-72/80 81/2-72/80 27/6-72/80 27/10-72/80 27/14-72/80