Add 27/45 and 12/4
1st number: 27/45, 2nd number: 3 0/4
27/45 + 12/4 is 18/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
27/45 = 27 × 4/45 × 4 = 108/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
12/4 = 12 × 45/4 × 45 = 540/180 - Add the two like fractions:
108/180 + 540/180 = 108 + 540/180 = 648/180 - 648/180 simplified gives 18/5
- So, 27/45 + 12/4 = 18/5
In mixed form: 33/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+12/4 27/45+24/4 27/90+12/4 27/45+12/8 81/45+12/4 27/45+36/4 27/45+60/4 27/45+12/20 27/45+84/4 27/45+12/28