Add 40/5 and 28/16
1st number: 8 0/5, 2nd number: 1 12/16
40/5 + 28/16 is 39/4.
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,
40/5 = 40 × 16/5 × 16 = 640/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
28/16 = 28 × 5/16 × 5 = 140/80 - Add the two like fractions:
640/80 + 140/80 = 640 + 140/80 = 780/80 - 780/80 simplified gives 39/4
- So, 40/5 + 28/16 = 39/4
In mixed form: 93/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+28/16 40/5+56/16 40/10+28/16 40/5+28/32 40/5+84/16 40/15+28/16 40/5+28/48 40/25+28/16 40/5+28/80 40/35+28/16