Add 21/10 and 16/84
1st number: 2 1/10, 2nd number: 16/84
21/10 + 16/84 is 481/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
21/10 = 21 × 42/10 × 42 = 882/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
16/84 = 16 × 5/84 × 5 = 80/420 - Add the two like fractions:
882/420 + 80/420 = 882 + 80/420 = 962/420 - 962/420 simplified gives 481/210
- So, 21/10 + 16/84 = 481/210
In mixed form: 261/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+16/84 21/10+32/84 21/20+16/84 63/10+16/84 21/10+48/84 21/30+16/84 21/10+80/84 21/50+16/84 21/70+16/84