Add 81/30 and 5/3
1st number: 2 21/30, 2nd number: 1 2/3
81/30 + 5/3 is 131/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
5/3 = 5 × 10/3 × 10 = 50/30 - Add the two like fractions:
81/30 + 50/30 = 81 + 50/30 = 131/30 - So, 81/30 + 5/3 = 131/30
In mixed form: 411/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30+10/3 81/60+5/3 81/30+5/6 81/30+15/3 81/90+5/3 81/30+5/9 81/30+25/3 81/30+5/15 81/30+35/3 81/30+5/21