Subtract 90/49 from 28/9
1st number: 3 1/9, 2nd number: 1 41/49
28/9 - 90/49 is 562/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
28/9 = 28 × 49/9 × 49 = 1372/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
90/49 = 90 × 9/49 × 9 = 810/441 - Subtract the two like fractions:
1372/441 - 810/441 = 1372 - 810/441 = 562/441 - In mixed form: 1121/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-90/49 28/18-90/49 28/9-90/98 84/9-90/49 28/27-90/49 28/45-90/49 28/63-90/49