Add 15/10 and 45/4
1st number: 1 5/10, 2nd number: 11 1/4
15/10 + 45/4 is 51/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20 - Add the two like fractions:
30/20 + 225/20 = 30 + 225/20 = 255/20 - 255/20 simplified gives 51/4
- So, 15/10 + 45/4 = 51/4
In mixed form: 123/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+45/4 15/10+90/4 15/20+45/4 15/10+45/8 45/10+45/4 15/30+45/4 15/10+45/12 75/10+45/4 15/50+45/4 15/10+45/20 15/70+45/4 15/10+45/28