Add 45/4 and 30/5
1st number: 11 1/4, 2nd number: 6 0/5
45/4 + 30/5 is 69/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
30/5 = 30 × 4/5 × 4 = 120/20 - Add the two like fractions:
225/20 + 120/20 = 225 + 120/20 = 345/20 - 345/20 simplified gives 69/4
- So, 45/4 + 30/5 = 69/4
In mixed form: 171/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+30/5 45/4+60/5 45/8+30/5 45/4+30/10 45/4+90/5 45/12+30/5 45/4+30/15 45/20+30/5 45/4+30/25 45/28+30/5 45/4+30/35