Add 3/10 and 15/28
3/10 + 15/28 is 117/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
3/10 = 3 × 14/10 × 14 = 42/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Add the two like fractions:
42/140 + 75/140 = 42 + 75/140 = 117/140 - So, 3/10 + 15/28 = 117/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+15/28 3/10+30/28 3/20+15/28 3/10+15/56 9/10+15/28 3/10+45/28 3/30+15/28 3/10+15/84 15/10+15/28 3/10+75/28 3/50+15/28 21/10+15/28 3/70+15/28