Add 84/16 and 9/20
1st number: 5 4/16, 2nd number: 9/20
84/16 + 9/20 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
84/16 = 84 × 5/16 × 5 = 420/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
9/20 = 9 × 4/20 × 4 = 36/80 - Add the two like fractions:
420/80 + 36/80 = 420 + 36/80 = 456/80 - 456/80 simplified gives 57/10
- So, 84/16 + 9/20 = 57/10
In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+18/20 84/32+9/20 84/16+9/40 84/16+27/20 84/48+9/20 84/16+9/60 84/16+45/20 84/80+9/20 84/16+63/20