Add 45/3 and 5/20
1st number: 15 0/3, 2nd number: 5/20
45/3 + 5/20 is 61/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
45/3 = 45 × 20/3 × 20 = 900/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Add the two like fractions:
900/60 + 15/60 = 900 + 15/60 = 915/60 - 915/60 simplified gives 61/4
- So, 45/3 + 5/20 = 61/4
In mixed form: 151/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3+5/20 45/3+10/20 45/6+5/20 45/3+5/40 45/3+15/20 45/9+5/20 45/3+5/60 45/3+25/20 45/15+5/20 45/3+35/20 45/21+5/20