Add 18/14 and 40/90
1st number: 1 4/14, 2nd number: 40/90
18/14 + 40/90 is 109/63.
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,
18/14 = 18 × 45/14 × 45 = 810/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
40/90 = 40 × 7/90 × 7 = 280/630 - Add the two like fractions:
810/630 + 280/630 = 810 + 280/630 = 1090/630 - 1090/630 simplified gives 109/63
- So, 18/14 + 40/90 = 109/63
In mixed form: 146/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14+40/90 18/14+80/90 18/28+40/90 54/14+40/90 18/42+40/90 90/14+40/90 18/70+40/90 18/98+40/90