Add 42/27 and 18/7
1st number: 1 15/27, 2nd number: 2 4/7
42/27 + 18/7 is 260/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
42/27 = 42 × 7/27 × 7 = 294/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
18/7 = 18 × 27/7 × 27 = 486/189 - Add the two like fractions:
294/189 + 486/189 = 294 + 486/189 = 780/189 - 780/189 simplified gives 260/63
- So, 42/27 + 18/7 = 260/63
In mixed form: 48/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+18/7 42/27+36/7 42/54+18/7 42/27+18/14 42/27+54/7 42/81+18/7 42/27+18/21 42/27+90/7 42/27+18/35 42/27+18/49