Add 81/75 and 15/30
1st number: 1 6/75, 2nd number: 15/30
81/75 + 15/30 is 79/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
81/75 = 81 × 2/75 × 2 = 162/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
15/30 = 15 × 5/30 × 5 = 75/150 - Add the two like fractions:
162/150 + 75/150 = 162 + 75/150 = 237/150 - 237/150 simplified gives 79/50
- So, 81/75 + 15/30 = 79/50
In mixed form: 129/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/75+15/60 81/75+45/30 81/75+15/90 81/75+75/30