Add 81/60 and 60/45
1st number: 1 21/60, 2nd number: 1 15/45
81/60 + 60/45 is 161/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
60/45 = 60 × 4/45 × 4 = 240/180 - Add the two like fractions:
243/180 + 240/180 = 243 + 240/180 = 483/180 - 483/180 simplified gives 161/60
- So, 81/60 + 60/45 = 161/60
In mixed form: 241/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/60+60/90