Add 40/8 and 30/9
1st number: 5 0/8, 2nd number: 3 3/9
40/8 + 30/9 is 25/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
40/8 = 40 × 9/8 × 9 = 360/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
30/9 = 30 × 8/9 × 8 = 240/72 - Add the two like fractions:
360/72 + 240/72 = 360 + 240/72 = 600/72 - 600/72 simplified gives 25/3
- So, 40/8 + 30/9 = 25/3
In mixed form: 81/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+30/9 40/8+60/9 40/16+30/9 40/8+30/18 40/8+90/9 40/24+30/9 40/8+30/27 40/8+30/45 40/56+30/9 40/8+30/63