Add 81/40 and 98/9
1st number: 2 1/40, 2nd number: 10 8/9
81/40 + 98/9 is 4649/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 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 9 × 40 = 360,
98/9 = 98 × 40/9 × 40 = 3920/360 - Add the two like fractions:
729/360 + 3920/360 = 729 + 3920/360 = 4649/360 - So, 81/40 + 98/9 = 4649/360
In mixed form: 12329/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80+98/9 81/40+98/18 81/40+98/27 81/40+98/45 81/40+98/63