Add 21/20 and 32/10
1st number: 1 1/20, 2nd number: 3 2/10
21/20 + 32/10 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
32/10 = 32 × 2/10 × 2 = 64/20 - Add the two like fractions:
21/20 + 64/20 = 21 + 64/20 = 85/20 - 85/20 simplified gives 17/4
- So, 21/20 + 32/10 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20+32/10 21/20+64/10 21/40+32/10 21/20+32/20 63/20+32/10 21/20+96/10 21/60+32/10 21/20+32/30 21/20+32/50 21/20+32/70