Add 30/8 and 16/9
1st number: 3 6/8, 2nd number: 1 7/9
30/8 + 16/9 is 199/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
16/9 = 16 × 8/9 × 8 = 128/72 - Add the two like fractions:
270/72 + 128/72 = 270 + 128/72 = 398/72 - 398/72 simplified gives 199/36
- So, 30/8 + 16/9 = 199/36
In mixed form: 519/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+16/9 30/8+32/9 30/16+16/9 30/8+16/18 90/8+16/9 30/8+48/9 30/24+16/9 30/8+16/27 30/8+80/9 30/40+16/9 30/8+16/45 30/56+16/9 30/8+16/63