Add 16/90 and 18/40
16/90 + 18/40 is 113/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
16/90 = 16 × 4/90 × 4 = 64/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
64/360 + 162/360 = 64 + 162/360 = 226/360 - 226/360 simplified gives 113/180
- So, 16/90 + 18/40 = 113/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/90+18/40 16/90+36/40 16/90+18/80 48/90+18/40 16/90+54/40 80/90+18/40 16/90+90/40