Add 16/90 and 18/20
16/90 + 18/20 is 97/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
16/90 = 16 × 2/90 × 2 = 32/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Add the two like fractions:
32/180 + 162/180 = 32 + 162/180 = 194/180 - 194/180 simplified gives 97/90
- So, 16/90 + 18/20 = 97/90
In mixed form: 17/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/90+18/20 16/90+36/20 16/90+18/40 48/90+18/20 16/90+54/20 16/90+18/60 80/90+18/20 16/90+90/20