Subtract 9/50 from 98/90
1st number: 1 8/90, 2nd number: 9/50
98/90 - 9/50 is 409/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
98/90 = 98 × 5/90 × 5 = 490/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
9/50 = 9 × 9/50 × 9 = 81/450 - Subtract the two like fractions:
490/450 - 81/450 = 490 - 81/450 = 409/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90-18/50 98/90-27/50 98/90-45/50 98/90-63/50