Add 21/6 and 90/8
1st number: 3 3/6, 2nd number: 11 2/8
21/6 + 90/8 is 59/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
21/6 = 21 × 4/6 × 4 = 84/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
90/8 = 90 × 3/8 × 3 = 270/24 - Add the two like fractions:
84/24 + 270/24 = 84 + 270/24 = 354/24 - 354/24 simplified gives 59/4
- So, 21/6 + 90/8 = 59/4
In mixed form: 143/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+90/8 21/12+90/8 21/6+90/16 63/6+90/8 21/18+90/8 21/6+90/24 21/30+90/8 21/6+90/40 21/42+90/8 21/6+90/56