Add 49/14 and 80/90
1st number: 3 7/14, 2nd number: 80/90
49/14 + 80/90 is 79/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
49/14 = 49 × 45/14 × 45 = 2205/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
80/90 = 80 × 7/90 × 7 = 560/630 - Add the two like fractions:
2205/630 + 560/630 = 2205 + 560/630 = 2765/630 - 2765/630 simplified gives 79/18
- So, 49/14 + 80/90 = 79/18
In mixed form: 47/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/14+80/90 49/28+80/90 49/42+80/90 49/70+80/90 49/98+80/90