Add 90/14 and 84/28
1st number: 6 6/14, 2nd number: 3 0/28
90/14 + 84/28 is 66/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
90/14 = 90 × 2/14 × 2 = 180/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
84/28 = 84 × 1/28 × 1 = 84/28 - Add the two like fractions:
180/28 + 84/28 = 180 + 84/28 = 264/28 - 264/28 simplified gives 66/7
- So, 90/14 + 84/28 = 66/7
In mixed form: 93/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+84/28 90/14+84/56 90/42+84/28 90/70+84/28 90/98+84/28