Add 84/45 and 20/5
1st number: 1 39/45, 2nd number: 4 0/5
84/45 + 20/5 is 88/15.
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,
84/45 = 84 × 1/45 × 1 = 84/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
20/5 = 20 × 9/5 × 9 = 180/45 - Add the two like fractions:
84/45 + 180/45 = 84 + 180/45 = 264/45 - 264/45 simplified gives 88/15
- So, 84/45 + 20/5 = 88/15
In mixed form: 513/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+40/5 84/90+20/5 84/45+20/10 84/45+60/5 84/45+20/15 84/45+20/25 84/45+20/35