Add 72/63 and 15/27
1st number: 1 9/63, 2nd number: 15/27
72/63 + 15/27 is 107/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
72/63 = 72 × 3/63 × 3 = 216/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
15/27 = 15 × 7/27 × 7 = 105/189 - Add the two like fractions:
216/189 + 105/189 = 216 + 105/189 = 321/189 - 321/189 simplified gives 107/63
- So, 72/63 + 15/27 = 107/63
In mixed form: 144/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63+30/27 72/63+15/54 72/63+45/27 72/63+15/81 72/63+75/27