Subtract 10/49 from 90/20
1st number: 4 10/20, 2nd number: 10/49
90/20 - 10/49 is 421/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
90/20 = 90 × 49/20 × 49 = 4410/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
10/49 = 10 × 20/49 × 20 = 200/980 - Subtract the two like fractions:
4410/980 - 200/980 = 4410 - 200/980 = 4210/980 - After reducing the fraction, the answer is 421/98
- In mixed form: 429/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-20/49 90/40-10/49 90/20-10/98 90/20-30/49 90/60-10/49 90/20-50/49 90/20-70/49