Add 16/8 and 21/70
1st number: 2 0/8, 2nd number: 21/70
16/8 + 21/70 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
16/8 = 16 × 35/8 × 35 = 560/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
21/70 = 21 × 4/70 × 4 = 84/280 - Add the two like fractions:
560/280 + 84/280 = 560 + 84/280 = 644/280 - 644/280 simplified gives 23/10
- So, 16/8 + 21/70 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/8+21/70 16/8+42/70 48/8+21/70 16/8+63/70 16/24+21/70 80/8+21/70 16/40+21/70 16/56+21/70