Add 90/70 and 14/18
1st number: 1 20/70, 2nd number: 14/18
90/70 + 14/18 is 130/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
14/18 = 14 × 35/18 × 35 = 490/630 - Add the two like fractions:
810/630 + 490/630 = 810 + 490/630 = 1300/630 - 1300/630 simplified gives 130/63
- So, 90/70 + 14/18 = 130/63
In mixed form: 24/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+28/18 90/70+14/36 90/70+42/18 90/70+14/54 90/70+70/18 90/70+14/90 90/70+98/18