Add 16/40 and 10/80
16/40 + 10/80 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
16/40 = 16 × 2/40 × 2 = 32/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
10/80 = 10 × 1/80 × 1 = 10/80 - Add the two like fractions:
32/80 + 10/80 = 32 + 10/80 = 42/80 - 42/80 simplified gives 21/40
- So, 16/40 + 10/80 = 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40+10/80 16/40+20/80 16/80+10/80 48/40+10/80 16/40+30/80 80/40+10/80 16/40+50/80 16/40+70/80