Add 15/4 and 30/5
1st number: 3 3/4, 2nd number: 6 0/5
15/4 + 30/5 is 39/4.
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,
15/4 = 15 × 5/4 × 5 = 75/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
30/5 = 30 × 4/5 × 4 = 120/20 - Add the two like fractions:
75/20 + 120/20 = 75 + 120/20 = 195/20 - 195/20 simplified gives 39/4
- So, 15/4 + 30/5 = 39/4
In mixed form: 93/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+30/5 15/4+60/5 15/8+30/5 15/4+30/10 45/4+30/5 15/4+90/5 15/12+30/5 15/4+30/15 75/4+30/5 15/20+30/5 15/4+30/25 15/28+30/5 15/4+30/35