Add 90/84 and 27/12
1st number: 1 6/84, 2nd number: 2 3/12
90/84 + 27/12 is 93/28.
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,
90/84 = 90 × 1/84 × 1 = 90/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
27/12 = 27 × 7/12 × 7 = 189/84 - Add the two like fractions:
90/84 + 189/84 = 90 + 189/84 = 279/84 - 279/84 simplified gives 93/28
- So, 90/84 + 27/12 = 93/28
In mixed form: 39/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+54/12 90/84+27/24 90/84+81/12 90/84+27/36 90/84+27/60 90/84+27/84