Add 7/40 and 12/9
1st number: 7/40, 2nd number: 1 3/9
7/40 + 12/9 is 181/120.
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,
7/40 = 7 × 9/40 × 9 = 63/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
12/9 = 12 × 40/9 × 40 = 480/360 - Add the two like fractions:
63/360 + 480/360 = 63 + 480/360 = 543/360 - 543/360 simplified gives 181/120
- So, 7/40 + 12/9 = 181/120
In mixed form: 161/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40+12/9 7/40+24/9 7/80+12/9 7/40+12/18 21/40+12/9 7/40+36/9 7/40+12/27 35/40+12/9 7/40+60/9 7/40+12/45 49/40+12/9 7/40+84/9 7/40+12/63