Add 15/6 and 42/80
1st number: 2 3/6, 2nd number: 42/80
15/6 + 42/80 is 121/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 6 × 40 = 240,
15/6 = 15 × 40/6 × 40 = 600/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
600/240 + 126/240 = 600 + 126/240 = 726/240 - 726/240 simplified gives 121/40
- So, 15/6 + 42/80 = 121/40
In mixed form: 31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/6+42/80 15/6+84/80 15/12+42/80 45/6+42/80 15/18+42/80 75/6+42/80 15/30+42/80 15/42+42/80