Add 6/5 and 42/80
1st number: 1 1/5, 2nd number: 42/80
6/5 + 42/80 is 69/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
6/5 = 6 × 16/5 × 16 = 96/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
96/80 + 42/80 = 96 + 42/80 = 138/80 - 138/80 simplified gives 69/40
- So, 6/5 + 42/80 = 69/40
In mixed form: 129/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/5+42/80 6/5+84/80 6/10+42/80 18/5+42/80 6/15+42/80 30/5+42/80 6/25+42/80 42/5+42/80 6/35+42/80