Add 80/90 and 18/14
1st number: 80/90, 2nd number: 1 4/14
80/90 + 18/14 is 137/63.
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,
80/90 = 80 × 7/90 × 7 = 560/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
18/14 = 18 × 45/14 × 45 = 810/630 - Add the two like fractions:
560/630 + 810/630 = 560 + 810/630 = 1370/630 - 1370/630 simplified gives 137/63
- So, 80/90 + 18/14 = 137/63
In mixed form: 211/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+36/14 80/90+18/28 80/90+54/14 80/90+18/42 80/90+90/14 80/90+18/70 80/90+18/98