Add 84/16 and 45/20
1st number: 5 4/16, 2nd number: 2 5/20
84/16 + 45/20 is 15/2.
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,
45/20 = 45 × 4/20 × 4 = 180/80 - Add the two like fractions:
420/80 + 180/80 = 420 + 180/80 = 600/80 - 600/80 simplified gives 15/2
- So, 84/16 + 45/20 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+90/20 84/32+45/20 84/16+45/40 84/48+45/20 84/16+45/60 84/80+45/20