Add 21/10 and 16/8
1st number: 2 1/10, 2nd number: 2 0/8
21/10 + 16/8 is 41/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
21/10 = 21 × 4/10 × 4 = 84/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
16/8 = 16 × 5/8 × 5 = 80/40 - Add the two like fractions:
84/40 + 80/40 = 84 + 80/40 = 164/40 - 164/40 simplified gives 41/10
- So, 21/10 + 16/8 = 41/10
In mixed form: 41/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+16/8 21/10+32/8 21/20+16/8 63/10+16/8 21/10+48/8 21/30+16/8 21/10+16/24 21/10+80/8 21/50+16/8 21/10+16/40 21/70+16/8 21/10+16/56