Subtract 27/72 from 28/10
1st number: 2 8/10, 2nd number: 27/72
28/10 - 27/72 is 97/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
28/10 = 28 × 36/10 × 36 = 1008/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Subtract the two like fractions:
1008/360 - 135/360 = 1008 - 135/360 = 873/360 - After reducing the fraction, the answer is 97/40
- In mixed form: 217/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10-27/72 28/10-54/72 28/20-27/72 84/10-27/72 28/10-81/72 28/30-27/72 28/50-27/72 28/70-27/72