Add 9/40 and 25/9
1st number: 9/40, 2nd number: 2 7/9
9/40 + 25/9 is 1081/360.
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,
9/40 = 9 × 9/40 × 9 = 81/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
25/9 = 25 × 40/9 × 40 = 1000/360 - Add the two like fractions:
81/360 + 1000/360 = 81 + 1000/360 = 1081/360 - So, 9/40 + 25/9 = 1081/360
In mixed form: 31/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+25/9 9/40+50/9 9/80+25/9 9/40+25/18 27/40+25/9 9/40+75/9 9/40+25/27 45/40+25/9 9/40+25/45 63/40+25/9 9/40+25/63