Add 18/30 and 7/4
1st number: 18/30, 2nd number: 1 3/4
18/30 + 7/4 is 47/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
7/4 = 7 × 15/4 × 15 = 105/60 - Add the two like fractions:
36/60 + 105/60 = 36 + 105/60 = 141/60 - 141/60 simplified gives 47/20
- So, 18/30 + 7/4 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+7/4 18/30+14/4 18/60+7/4 18/30+7/8 54/30+7/4 18/30+21/4 18/90+7/4 18/30+7/12 90/30+7/4 18/30+35/4 18/30+7/20 18/30+49/4 18/30+7/28