Add 45/40 and 7/9
1st number: 1 5/40, 2nd number: 7/9
45/40 + 7/9 is 137/72.
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,
45/40 = 45 × 9/40 × 9 = 405/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
7/9 = 7 × 40/9 × 40 = 280/360 - Add the two like fractions:
405/360 + 280/360 = 405 + 280/360 = 685/360 - 685/360 simplified gives 137/72
- So, 45/40 + 7/9 = 137/72
In mixed form: 165/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+7/9 45/40+14/9 45/80+7/9 45/40+7/18 45/40+21/9 45/40+7/27 45/40+35/9 45/40+7/45 45/40+49/9 45/40+7/63