Add 81/45 and 1/12
1st number: 1 36/45, 2nd number: 1/12
81/45 + 1/12 is 113/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 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 12 × 15 = 180,
1/12 = 1 × 15/12 × 15 = 15/180 - Add the two like fractions:
324/180 + 15/180 = 324 + 15/180 = 339/180 - 339/180 simplified gives 113/60
- So, 81/45 + 1/12 = 113/60
In mixed form: 153/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/45+2/12 81/90+1/12 81/45+1/24 81/45+3/12 81/45+1/36 81/45+5/12 81/45+1/60 81/45+7/12 81/45+1/84