Add 84/90 and 12/14
84/90 + 12/14 is 188/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
84/90 = 84 × 7/90 × 7 = 588/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
12/14 = 12 × 45/14 × 45 = 540/630 - Add the two like fractions:
588/630 + 540/630 = 588 + 540/630 = 1128/630 - 1128/630 simplified gives 188/105
- So, 84/90 + 12/14 = 188/105
In mixed form: 183/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+24/14 84/90+12/28 84/90+36/14 84/90+12/42 84/90+60/14 84/90+12/70 84/90+84/14 84/90+12/98