Add 30/2 and 7/20
1st number: 15 0/2, 2nd number: 7/20
30/2 + 7/20 is 307/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
30/2 = 30 × 10/2 × 10 = 300/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
7/20 = 7 × 1/20 × 1 = 7/20 - Add the two like fractions:
300/20 + 7/20 = 300 + 7/20 = 307/20 - So, 30/2 + 7/20 = 307/20
In mixed form: 157/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2+7/20 30/2+14/20 30/4+7/20 30/2+7/40 90/2+7/20 30/2+21/20 30/6+7/20 30/2+7/60 30/2+35/20 30/10+7/20 30/2+49/20 30/14+7/20