Add 8/16 and 42/80
8/16 + 42/80 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
8/16 = 8 × 5/16 × 5 = 40/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
40/80 + 42/80 = 40 + 42/80 = 82/80 - 82/80 simplified gives 41/40
- So, 8/16 + 42/80 = 41/40
In mixed form: 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16+84/80 8/32+42/80 24/16+42/80 8/48+42/80 40/16+42/80 8/80+42/80 56/16+42/80