Add 28/16 and 42/5
1st number: 1 12/16, 2nd number: 8 2/5
28/16 + 42/5 is 203/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
28/16 = 28 × 5/16 × 5 = 140/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
42/5 = 42 × 16/5 × 16 = 672/80 - Add the two like fractions:
140/80 + 672/80 = 140 + 672/80 = 812/80 - 812/80 simplified gives 203/20
- So, 28/16 + 42/5 = 203/20
In mixed form: 103/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16+42/5 28/16+84/5 28/32+42/5 28/16+42/10 84/16+42/5 28/48+42/5 28/16+42/15 28/80+42/5 28/16+42/25 28/16+42/35