Subtract 18/20 from 98/30
1st number: 3 8/30, 2nd number: 18/20
98/30 - 18/20 is 71/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
98/30 = 98 × 2/30 × 2 = 196/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Subtract the two like fractions:
196/60 - 54/60 = 196 - 54/60 = 142/60 - After reducing the fraction, the answer is 71/30
- In mixed form: 211/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30-36/20 98/60-18/20 98/30-18/40 98/30-54/20 98/90-18/20 98/30-18/60 98/30-90/20