Add 30/90 and 81/32
1st number: 30/90, 2nd number: 2 17/32
30/90 + 81/32 is 275/96.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
30/90 = 30 × 16/90 × 16 = 480/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
81/32 = 81 × 45/32 × 45 = 3645/1440 - Add the two like fractions:
480/1440 + 3645/1440 = 480 + 3645/1440 = 4125/1440 - 4125/1440 simplified gives 275/96
- So, 30/90 + 81/32 = 275/96
In mixed form: 283/96
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90+81/32 30/90+81/64 30/90+81/96