Add 30/24 and 21/90
1st number: 1 6/24, 2nd number: 21/90
30/24 + 21/90 is 89/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
30/24 = 30 × 15/24 × 15 = 450/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
21/90 = 21 × 4/90 × 4 = 84/360 - Add the two like fractions:
450/360 + 84/360 = 450 + 84/360 = 534/360 - 534/360 simplified gives 89/60
- So, 30/24 + 21/90 = 89/60
In mixed form: 129/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24+21/90 30/24+42/90 30/48+21/90 90/24+21/90 30/24+63/90 30/72+21/90