Add 2/3 and 42/80
2/3 + 42/80 is 143/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 3 × 80 = 240,
2/3 = 2 × 80/3 × 80 = 160/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
160/240 + 126/240 = 160 + 126/240 = 286/240 - 286/240 simplified gives 143/120
- So, 2/3 + 42/80 = 143/120
In mixed form: 123/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/3+42/80 2/3+84/80 2/6+42/80 6/3+42/80 2/9+42/80 10/3+42/80 2/15+42/80 14/3+42/80 2/21+42/80