Add 21/5 and 5/45
1st number: 4 1/5, 2nd number: 5/45
21/5 + 5/45 is 194/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
21/5 = 21 × 9/5 × 9 = 189/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
5/45 = 5 × 1/45 × 1 = 5/45 - Add the two like fractions:
189/45 + 5/45 = 189 + 5/45 = 194/45 - So, 21/5 + 5/45 = 194/45
In mixed form: 414/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+5/45 21/5+10/45 21/10+5/45 21/5+5/90 63/5+5/45 21/5+15/45 21/15+5/45 21/5+25/45 21/25+5/45 21/5+35/45 21/35+5/45