Add 15/2 and 20/28
1st number: 7 1/2, 2nd number: 20/28
15/2 + 20/28 is 115/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
15/2 = 15 × 14/2 × 14 = 210/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
20/28 = 20 × 1/28 × 1 = 20/28 - Add the two like fractions:
210/28 + 20/28 = 210 + 20/28 = 230/28 - 230/28 simplified gives 115/14
- So, 15/2 + 20/28 = 115/14
In mixed form: 83/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+20/28 15/2+40/28 15/4+20/28 15/2+20/56 45/2+20/28 15/2+60/28 15/6+20/28 15/2+20/84 75/2+20/28 15/10+20/28 15/14+20/28