Add 15/10 and 3/80
1st number: 1 5/10, 2nd number: 3/80
15/10 + 3/80 is 123/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
15/10 = 15 × 8/10 × 8 = 120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Add the two like fractions:
120/80 + 3/80 = 120 + 3/80 = 123/80 - So, 15/10 + 3/80 = 123/80
In mixed form: 143/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+3/80 15/10+6/80 15/20+3/80 45/10+3/80 15/10+9/80 15/30+3/80 75/10+3/80 15/10+15/80 15/50+3/80 15/10+21/80 15/70+3/80