Add 72/14 and 12/81
1st number: 5 2/14, 2nd number: 12/81
72/14 + 12/81 is 1000/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
72/14 = 72 × 81/14 × 81 = 5832/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
12/81 = 12 × 14/81 × 14 = 168/1134 - Add the two like fractions:
5832/1134 + 168/1134 = 5832 + 168/1134 = 6000/1134 - 6000/1134 simplified gives 1000/189
- So, 72/14 + 12/81 = 1000/189
In mixed form: 555/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+24/81 72/28+12/81 72/14+36/81 72/42+12/81 72/14+60/81 72/70+12/81 72/14+84/81 72/98+12/81