Add 15/30 and 2/7
15/30 + 2/7 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
15/30 = 15 × 7/30 × 7 = 105/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
2/7 = 2 × 30/7 × 30 = 60/210 - Add the two like fractions:
105/210 + 60/210 = 105 + 60/210 = 165/210 - 165/210 simplified gives 11/14
- So, 15/30 + 2/7 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30+4/7 15/60+2/7 15/30+2/14 45/30+2/7 15/30+6/7 15/90+2/7 15/30+2/21 75/30+2/7 15/30+10/7 15/30+2/35 15/30+14/7 15/30+2/49