Subtract 63/28 from 20/9
1st number: 2 2/9, 2nd number: 2 7/28
20/9 - 63/28 is -1/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
63/28 = 63 × 9/28 × 9 = 567/252 - Subtract the two like fractions:
560/252 - 567/252 = 560 - 567/252 = -7/252 - After reducing the fraction, the answer is -1/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9-63/28 20/18-63/28 20/9-63/56 60/9-63/28 20/27-63/28 20/9-63/84 20/45-63/28 20/63-63/28