Add 15/2 and 75/20
1st number: 7 1/2, 2nd number: 3 15/20
15/2 + 75/20 is 45/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
15/2 = 15 × 10/2 × 10 = 150/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Add the two like fractions:
150/20 + 75/20 = 150 + 75/20 = 225/20 - 225/20 simplified gives 45/4
- So, 15/2 + 75/20 = 45/4
In mixed form: 111/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2+75/20 15/4+75/20 15/2+75/40 45/2+75/20 15/6+75/20 15/2+75/60 75/2+75/20 15/10+75/20 15/14+75/20