Add 7/2 and 20/15
1st number: 3 1/2, 2nd number: 1 5/15
7/2 + 20/15 is 29/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
7/2 = 7 × 15/2 × 15 = 105/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
20/15 = 20 × 2/15 × 2 = 40/30 - Add the two like fractions:
105/30 + 40/30 = 105 + 40/30 = 145/30 - 145/30 simplified gives 29/6
- So, 7/2 + 20/15 = 29/6
In mixed form: 45/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+20/15 7/2+40/15 7/4+20/15 7/2+20/30 21/2+20/15 7/2+60/15 7/6+20/15 7/2+20/45 35/2+20/15 7/10+20/15 7/2+20/75 49/2+20/15 7/14+20/15