Subtract 63/90 from 28/9
1st number: 3 1/9, 2nd number: 63/90
28/9 - 63/90 is 217/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
28/9 = 28 × 10/9 × 10 = 280/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Subtract the two like fractions:
280/90 - 63/90 = 280 - 63/90 = 217/90 - In mixed form: 237/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-63/90 28/18-63/90 84/9-63/90 28/27-63/90 28/45-63/90 28/63-63/90