Subtract 42/60 from 98/90
1st number: 1 8/90, 2nd number: 42/60
98/90 - 42/60 is 7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
98/90 = 98 × 2/90 × 2 = 196/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Subtract the two like fractions:
196/180 - 126/180 = 196 - 126/180 = 70/180 - After reducing the fraction, the answer is 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90-84/60