Subtract 30/90 from 98/8
1st number: 12 2/8, 2nd number: 30/90
98/8 - 30/90 is 143/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
98/8 = 98 × 45/8 × 45 = 4410/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
30/90 = 30 × 4/90 × 4 = 120/360 - Subtract the two like fractions:
4410/360 - 120/360 = 4410 - 120/360 = 4290/360 - After reducing the fraction, the answer is 143/12
- In mixed form: 1111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/8-60/90 98/16-30/90 98/24-30/90 98/40-30/90 98/56-30/90