Add 18/30 and 7/80
18/30 + 7/80 is 11/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
18/30 = 18 × 8/30 × 8 = 144/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
7/80 = 7 × 3/80 × 3 = 21/240 - Add the two like fractions:
144/240 + 21/240 = 144 + 21/240 = 165/240 - 165/240 simplified gives 11/16
- So, 18/30 + 7/80 = 11/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+7/80 18/30+14/80 18/60+7/80 54/30+7/80 18/30+21/80 18/90+7/80 90/30+7/80 18/30+35/80 18/30+49/80