Add 12/40 and 56/9
1st number: 12/40, 2nd number: 6 2/9
12/40 + 56/9 is 587/90.
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,
12/40 = 12 × 9/40 × 9 = 108/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
56/9 = 56 × 40/9 × 40 = 2240/360 - Add the two like fractions:
108/360 + 2240/360 = 108 + 2240/360 = 2348/360 - 2348/360 simplified gives 587/90
- So, 12/40 + 56/9 = 587/90
In mixed form: 647/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+56/9 12/80+56/9 12/40+56/18 36/40+56/9 12/40+56/27 60/40+56/9 12/40+56/45 84/40+56/9 12/40+56/63