Add 42/27 and 84/45
1st number: 1 15/27, 2nd number: 1 39/45
42/27 + 84/45 is 154/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
42/27 = 42 × 5/27 × 5 = 210/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
84/45 = 84 × 3/45 × 3 = 252/135 - Add the two like fractions:
210/135 + 252/135 = 210 + 252/135 = 462/135 - 462/135 simplified gives 154/45
- So, 42/27 + 84/45 = 154/45
In mixed form: 319/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+84/45 42/54+84/45 42/27+84/90 42/81+84/45