Add 21/5 and 32/90
1st number: 4 1/5, 2nd number: 32/90
21/5 + 32/90 is 41/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
21/5 = 21 × 18/5 × 18 = 378/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
32/90 = 32 × 1/90 × 1 = 32/90 - Add the two like fractions:
378/90 + 32/90 = 378 + 32/90 = 410/90 - 410/90 simplified gives 41/9
- So, 21/5 + 32/90 = 41/9
In mixed form: 45/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+32/90 21/5+64/90 21/10+32/90 63/5+32/90 21/5+96/90 21/15+32/90 21/25+32/90 21/35+32/90