Add 7/45 and 21/5
1st number: 7/45, 2nd number: 4 1/5
7/45 + 21/5 is 196/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
21/5 = 21 × 9/5 × 9 = 189/45 - Add the two like fractions:
7/45 + 189/45 = 7 + 189/45 = 196/45 - So, 7/45 + 21/5 = 196/45
In mixed form: 416/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+21/5 7/45+42/5 7/90+21/5 7/45+21/10 21/45+21/5 7/45+63/5 7/45+21/15 35/45+21/5 7/45+21/25 49/45+21/5 7/45+21/35