Add 18/45 and 30/16
1st number: 18/45, 2nd number: 1 14/16
18/45 + 30/16 is 91/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
18/45 = 18 × 16/45 × 16 = 288/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
30/16 = 30 × 45/16 × 45 = 1350/720 - Add the two like fractions:
288/720 + 1350/720 = 288 + 1350/720 = 1638/720 - 1638/720 simplified gives 91/40
- So, 18/45 + 30/16 = 91/40
In mixed form: 211/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+30/16 18/45+60/16 18/90+30/16 18/45+30/32 54/45+30/16 18/45+90/16 18/45+30/48 90/45+30/16 18/45+30/80