Add 84/18 and 48/20
1st number: 4 12/18, 2nd number: 2 8/20
84/18 + 48/20 is 106/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
84/18 = 84 × 10/18 × 10 = 840/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
48/20 = 48 × 9/20 × 9 = 432/180 - Add the two like fractions:
840/180 + 432/180 = 840 + 432/180 = 1272/180 - 1272/180 simplified gives 106/15
- So, 84/18 + 48/20 = 106/15
In mixed form: 71/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+96/20 84/36+48/20 84/18+48/40 84/54+48/20 84/18+48/60 84/90+48/20