Subtract 98/36 from 81/40
1st number: 2 1/40, 2nd number: 2 26/36
81/40 - 98/36 is -251/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
81/40 = 81 × 9/40 × 9 = 729/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
98/36 = 98 × 10/36 × 10 = 980/360 - Subtract the two like fractions:
729/360 - 980/360 = 729 - 980/360 = -251/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80-98/36 81/40-98/72