Subtract 18/20 from 28/3
1st number: 9 1/3, 2nd number: 18/20
28/3 - 18/20 is 253/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
28/3 = 28 × 20/3 × 20 = 560/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Subtract the two like fractions:
560/60 - 54/60 = 560 - 54/60 = 506/60 - After reducing the fraction, the answer is 253/30
- In mixed form: 813/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/3-18/20 28/3-36/20 28/6-18/20 28/3-18/40 84/3-18/20 28/3-54/20 28/9-18/20 28/3-18/60 28/3-90/20 28/15-18/20 28/21-18/20