Subtract 98/40 from 9/4
1st number: 2 1/4, 2nd number: 2 18/40
9/4 - 98/40 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
9/4 = 9 × 10/4 × 10 = 90/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
98/40 = 98 × 1/40 × 1 = 98/40 - Subtract the two like fractions:
90/40 - 98/40 = 90 - 98/40 = -8/40 - After reducing the fraction, the answer is -1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4-98/40 9/8-98/40 9/4-98/80 27/4-98/40 9/12-98/40 45/4-98/40 9/20-98/40 63/4-98/40 9/28-98/40