Add 36/45 and 21/10
1st number: 36/45, 2nd number: 2 1/10
36/45 + 21/10 is 29/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
36/45 = 36 × 2/45 × 2 = 72/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Add the two like fractions:
72/90 + 189/90 = 72 + 189/90 = 261/90 - 261/90 simplified gives 29/10
- So, 36/45 + 21/10 = 29/10
In mixed form: 29/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+21/10 36/45+42/10 36/90+21/10 36/45+21/20 36/45+63/10 36/45+21/30 36/45+21/50 36/45+21/70