Subtract 45/98 from 90/30
1st number: 3 0/30, 2nd number: 45/98
90/30 - 45/98 is 249/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
90/30 = 90 × 49/30 × 49 = 4410/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
45/98 = 45 × 15/98 × 15 = 675/1470 - Subtract the two like fractions:
4410/1470 - 675/1470 = 4410 - 675/1470 = 3735/1470 - After reducing the fraction, the answer is 249/98
- In mixed form: 253/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-90/98 90/60-45/98