Add 18/80 and 40/30
1st number: 18/80, 2nd number: 1 10/30
18/80 + 40/30 is 187/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
18/80 = 18 × 3/80 × 3 = 54/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
40/30 = 40 × 8/30 × 8 = 320/240 - Add the two like fractions:
54/240 + 320/240 = 54 + 320/240 = 374/240 - 374/240 simplified gives 187/120
- So, 18/80 + 40/30 = 187/120
In mixed form: 167/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+40/30 18/80+80/30 18/80+40/60 54/80+40/30 18/80+40/90 90/80+40/30