Add 30/16 and 90/18
1st number: 1 14/16, 2nd number: 5 0/18
30/16 + 90/18 is 55/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
30/16 = 30 × 9/16 × 9 = 270/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
90/18 = 90 × 8/18 × 8 = 720/144 - Add the two like fractions:
270/144 + 720/144 = 270 + 720/144 = 990/144 - 990/144 simplified gives 55/8
- So, 30/16 + 90/18 = 55/8
In mixed form: 67/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/16+90/18 30/32+90/18 30/16+90/36 90/16+90/18 30/48+90/18 30/16+90/54 30/80+90/18