Add 90/12 and 30/14
1st number: 7 6/12, 2nd number: 2 2/14
90/12 + 30/14 is 135/14.
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,
30/14 = 30 × 6/14 × 6 = 180/84 - Add the two like fractions:
630/84 + 180/84 = 630 + 180/84 = 810/84 - 810/84 simplified gives 135/14
- So, 90/12 + 30/14 = 135/14
In mixed form: 99/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+60/14 90/24+30/14 90/12+30/28 90/12+90/14 90/36+30/14 90/12+30/42 90/60+30/14 90/12+30/70 90/84+30/14 90/12+30/98