Add 30/24 and 21/45
1st number: 1 6/24, 2nd number: 21/45
30/24 + 21/45 is 103/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 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 45 × 8 = 360,
21/45 = 21 × 8/45 × 8 = 168/360 - Add the two like fractions:
450/360 + 168/360 = 450 + 168/360 = 618/360 - 618/360 simplified gives 103/60
- So, 30/24 + 21/45 = 103/60
In mixed form: 143/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24+21/45 30/24+42/45 30/48+21/45 30/24+21/90 90/24+21/45 30/24+63/45 30/72+21/45