Add 3/2 and 81/60
1st number: 1 1/2, 2nd number: 1 21/60
3/2 + 81/60 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 2 × 30 = 60,
3/2 = 3 × 30/2 × 30 = 90/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Add the two like fractions:
90/60 + 81/60 = 90 + 81/60 = 171/60 - 171/60 simplified gives 57/20
- So, 3/2 + 81/60 = 57/20
In mixed form: 217/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2+81/60 3/4+81/60 9/2+81/60 3/6+81/60 15/2+81/60 3/10+81/60 21/2+81/60 3/14+81/60