Add 45/14 and 18/15
1st number: 3 3/14, 2nd number: 1 3/15
45/14 + 18/15 is 309/70.
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,
45/14 = 45 × 15/14 × 15 = 675/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
18/15 = 18 × 14/15 × 14 = 252/210 - Add the two like fractions:
675/210 + 252/210 = 675 + 252/210 = 927/210 - 927/210 simplified gives 309/70
- So, 45/14 + 18/15 = 309/70
In mixed form: 429/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+18/15 45/14+36/15 45/28+18/15 45/14+18/30 45/14+54/15 45/42+18/15 45/14+18/45 45/14+90/15 45/70+18/15 45/14+18/75 45/98+18/15