Add 8/14 and 90/45
1st number: 8/14, 2nd number: 2 0/45
8/14 + 90/45 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
8/14 = 8 × 45/14 × 45 = 360/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
90/45 = 90 × 14/45 × 14 = 1260/630 - Add the two like fractions:
360/630 + 1260/630 = 360 + 1260/630 = 1620/630 - 1620/630 simplified gives 18/7
- So, 8/14 + 90/45 = 18/7
In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14+90/45 8/28+90/45 24/14+90/45 8/42+90/45 40/14+90/45 8/70+90/45 56/14+90/45 8/98+90/45