Add 40/8 and 8/18
1st number: 5 0/8, 2nd number: 8/18
40/8 + 8/18 is 49/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 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 18 × 4 = 72,
8/18 = 8 × 4/18 × 4 = 32/72 - Add the two like fractions:
360/72 + 32/72 = 360 + 32/72 = 392/72 - 392/72 simplified gives 49/9
- So, 40/8 + 8/18 = 49/9
In mixed form: 54/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+8/18 40/8+16/18 40/16+8/18 40/8+8/36 40/8+24/18 40/24+8/18 40/8+8/54 40/8+40/18 40/8+8/90 40/8+56/18 40/56+8/18