Subtract 90/30 from 50/98
1st number: 50/98, 2nd number: 3 0/30
50/98 - 90/30 is -122/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
50/98 = 50 × 15/98 × 15 = 750/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
90/30 = 90 × 49/30 × 49 = 4410/1470 - Subtract the two like fractions:
750/1470 - 4410/1470 = 750 - 4410/1470 = -3660/1470 - After reducing the fraction, the answer is -122/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/98-90/60