Add 9/12 and 25/84
9/12 + 25/84 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
9/12 = 9 × 7/12 × 7 = 63/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
25/84 = 25 × 1/84 × 1 = 25/84 - Add the two like fractions:
63/84 + 25/84 = 63 + 25/84 = 88/84 - 88/84 simplified gives 22/21
- So, 9/12 + 25/84 = 22/21
In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+25/84 9/12+50/84 9/24+25/84 27/12+25/84 9/12+75/84 9/36+25/84 45/12+25/84 9/60+25/84 63/12+25/84 9/84+25/84