Add 15/4 and 10/81
1st number: 3 3/4, 2nd number: 10/81
15/4 + 10/81 is 1255/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
15/4 = 15 × 81/4 × 81 = 1215/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
10/81 = 10 × 4/81 × 4 = 40/324 - Add the two like fractions:
1215/324 + 40/324 = 1215 + 40/324 = 1255/324 - So, 15/4 + 10/81 = 1255/324
In mixed form: 3283/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+10/81 15/4+20/81 15/8+10/81 45/4+10/81 15/4+30/81 15/12+10/81 75/4+10/81 15/4+50/81 15/20+10/81 15/4+70/81 15/28+10/81