Add 81/40 and 50/9
1st number: 2 1/40, 2nd number: 5 5/9
81/40 + 50/9 is 2729/360.
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,
50/9 = 50 × 40/9 × 40 = 2000/360 - Add the two like fractions:
729/360 + 2000/360 = 729 + 2000/360 = 2729/360 - So, 81/40 + 50/9 = 2729/360
In mixed form: 7209/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80+50/9 81/40+50/18 81/40+50/27 81/40+50/45 81/40+50/63