Add 7/14 and 30/15
1st number: 7/14, 2nd number: 2 0/15
7/14 + 30/15 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
7/14 = 7 × 15/14 × 15 = 105/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
30/15 = 30 × 14/15 × 14 = 420/210 - Add the two like fractions:
105/210 + 420/210 = 105 + 420/210 = 525/210 - 525/210 simplified gives 5/2
- So, 7/14 + 30/15 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14+60/15 7/28+30/15 21/14+30/15 7/14+90/15 7/42+30/15 7/14+30/45 35/14+30/15 7/70+30/15 7/14+30/75 49/14+30/15 7/98+30/15