Add 45/20 and 4/5
1st number: 2 5/20, 2nd number: 4/5
45/20 + 4/5 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
4/5 = 4 × 4/5 × 4 = 16/20 - Add the two like fractions:
45/20 + 16/20 = 45 + 16/20 = 61/20 - So, 45/20 + 4/5 = 61/20
In mixed form: 31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+4/5 45/20+8/5 45/40+4/5 45/20+4/10 45/20+12/5 45/60+4/5 45/20+4/15 45/20+20/5 45/20+4/25 45/20+28/5 45/20+4/35