Add 84/14 and 54/15
1st number: 6 0/14, 2nd number: 3 9/15
84/14 + 54/15 is 48/5.
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,
84/14 = 84 × 15/14 × 15 = 1260/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
54/15 = 54 × 14/15 × 14 = 756/210 - Add the two like fractions:
1260/210 + 756/210 = 1260 + 756/210 = 2016/210 - 2016/210 simplified gives 48/5
- So, 84/14 + 54/15 = 48/5
In mixed form: 93/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+54/15 84/14+54/30 84/42+54/15 84/14+54/45 84/70+54/15 84/14+54/75 84/98+54/15