Add 4/84 and 45/9
1st number: 4/84, 2nd number: 5 0/9
4/84 + 45/9 is 106/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
4/84 = 4 × 3/84 × 3 = 12/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
45/9 = 45 × 28/9 × 28 = 1260/252 - Add the two like fractions:
12/252 + 1260/252 = 12 + 1260/252 = 1272/252 - 1272/252 simplified gives 106/21
- So, 4/84 + 45/9 = 106/21
In mixed form: 51/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+45/9 4/84+90/9 4/84+45/18 12/84+45/9 4/84+45/27 20/84+45/9 28/84+45/9 4/84+45/63