Add 90/12 and 12/14
1st number: 7 6/12, 2nd number: 12/14
90/12 + 12/14 is 117/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
12/14 = 12 × 6/14 × 6 = 72/84 - Add the two like fractions:
630/84 + 72/84 = 630 + 72/84 = 702/84 - 702/84 simplified gives 117/14
- So, 90/12 + 12/14 = 117/14
In mixed form: 85/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+24/14 90/24+12/14 90/12+12/28 90/12+36/14 90/36+12/14 90/12+12/42 90/12+60/14 90/60+12/14 90/12+12/70 90/12+84/14 90/84+12/14 90/12+12/98