Add 54/84 and 3/12
54/84 + 3/12 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
54/84 = 54 × 1/84 × 1 = 54/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Add the two like fractions:
54/84 + 21/84 = 54 + 21/84 = 75/84 - 75/84 simplified gives 25/28
- So, 54/84 + 3/12 = 25/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+6/12 54/84+3/24 54/84+9/12 54/84+3/36 54/84+15/12 54/84+3/60 54/84+21/12 54/84+3/84