Add 3/5 and 42/16
1st number: 3/5, 2nd number: 2 10/16
3/5 + 42/16 is 129/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
3/5 = 3 × 16/5 × 16 = 48/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
48/80 + 210/80 = 48 + 210/80 = 258/80 - 258/80 simplified gives 129/40
- So, 3/5 + 42/16 = 129/40
In mixed form: 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+42/16 3/5+84/16 3/10+42/16 3/5+42/32 9/5+42/16 3/15+42/16 3/5+42/48 15/5+42/16 3/25+42/16 3/5+42/80 21/5+42/16 3/35+42/16