Add 18/84 and 12/16
18/84 + 12/16 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
18/84 = 18 × 4/84 × 4 = 72/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
12/16 = 12 × 21/16 × 21 = 252/336 - Add the two like fractions:
72/336 + 252/336 = 72 + 252/336 = 324/336 - 324/336 simplified gives 27/28
- So, 18/84 + 12/16 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+12/16 18/84+24/16 18/84+12/32 54/84+12/16 18/84+36/16 18/84+12/48 90/84+12/16 18/84+60/16 18/84+12/80 18/84+84/16