Add 45/2 and 21/30
1st number: 22 1/2, 2nd number: 21/30
45/2 + 21/30 is 116/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
45/2 = 45 × 15/2 × 15 = 675/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Add the two like fractions:
675/30 + 21/30 = 675 + 21/30 = 696/30 - 696/30 simplified gives 116/5
- So, 45/2 + 21/30 = 116/5
In mixed form: 231/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+21/30 45/2+42/30 45/4+21/30 45/2+21/60 45/2+63/30 45/6+21/30 45/2+21/90 45/10+21/30 45/14+21/30