Add 42/7 and 72/27
1st number: 6 0/7, 2nd number: 2 18/27
42/7 + 72/27 is 26/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
42/7 = 42 × 27/7 × 27 = 1134/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
72/27 = 72 × 7/27 × 7 = 504/189 - Add the two like fractions:
1134/189 + 504/189 = 1134 + 504/189 = 1638/189 - 1638/189 simplified gives 26/3
- So, 42/7 + 72/27 = 26/3
In mixed form: 82/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+72/27 42/14+72/27 42/7+72/54 42/21+72/27 42/7+72/81 42/35+72/27 42/49+72/27