Add 18/4 and 90/16
1st number: 4 2/4, 2nd number: 5 10/16
18/4 + 90/16 is 81/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
18/4 = 18 × 4/4 × 4 = 72/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
90/16 = 90 × 1/16 × 1 = 90/16 - Add the two like fractions:
72/16 + 90/16 = 72 + 90/16 = 162/16 - 162/16 simplified gives 81/8
- So, 18/4 + 90/16 = 81/8
In mixed form: 101/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+90/16 18/8+90/16 18/4+90/32 54/4+90/16 18/12+90/16 18/4+90/48 90/4+90/16 18/20+90/16 18/4+90/80 18/28+90/16