Add 20/5 and 45/60
1st number: 4 0/5, 2nd number: 45/60
20/5 + 45/60 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
20/5 = 20 × 12/5 × 12 = 240/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
45/60 = 45 × 1/60 × 1 = 45/60 - Add the two like fractions:
240/60 + 45/60 = 240 + 45/60 = 285/60 - 285/60 simplified gives 19/4
- So, 20/5 + 45/60 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5+45/60 20/5+90/60 20/10+45/60 60/5+45/60 20/15+45/60 20/25+45/60 20/35+45/60