Add 81/45 and 30/36
1st number: 1 36/45, 2nd number: 30/36
81/45 + 30/36 is 79/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
30/36 = 30 × 5/36 × 5 = 150/180 - Add the two like fractions:
324/180 + 150/180 = 324 + 150/180 = 474/180 - 474/180 simplified gives 79/30
- So, 81/45 + 30/36 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/45+60/36 81/90+30/36 81/45+30/72 81/45+90/36