Add 84/40 and 12/16
1st number: 2 4/40, 2nd number: 12/16
84/40 + 12/16 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
84/40 = 84 × 2/40 × 2 = 168/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80 - Add the two like fractions:
168/80 + 60/80 = 168 + 60/80 = 228/80 - 228/80 simplified gives 57/20
- So, 84/40 + 12/16 = 57/20
In mixed form: 217/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+24/16 84/80+12/16 84/40+12/32 84/40+36/16 84/40+12/48 84/40+60/16 84/40+12/80 84/40+84/16