Add 45/27 and 18/7
1st number: 1 18/27, 2nd number: 2 4/7
45/27 + 18/7 is 89/21.
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,
45/27 = 45 × 7/27 × 7 = 315/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
18/7 = 18 × 27/7 × 27 = 486/189 - Add the two like fractions:
315/189 + 486/189 = 315 + 486/189 = 801/189 - 801/189 simplified gives 89/21
- So, 45/27 + 18/7 = 89/21
In mixed form: 45/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+18/7 45/27+36/7 45/54+18/7 45/27+18/14 45/27+54/7 45/81+18/7 45/27+18/21 45/27+90/7 45/27+18/35 45/27+18/49