Subtract 28/90 from 10/49
10/49 - 28/90 is -236/2205.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
10/49 = 10 × 90/49 × 90 = 900/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
28/90 = 28 × 49/90 × 49 = 1372/4410 - Subtract the two like fractions:
900/4410 - 1372/4410 = 900 - 1372/4410 = -472/4410 - After reducing the fraction, the answer is -236/2205
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/49-28/90 10/49-56/90 10/98-28/90 30/49-28/90 10/49-84/90 50/49-28/90 70/49-28/90