Add 7/18 and 18/70
7/18 + 18/70 is 407/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
7/18 = 7 × 35/18 × 35 = 245/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630 - Add the two like fractions:
245/630 + 162/630 = 245 + 162/630 = 407/630 - So, 7/18 + 18/70 = 407/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18+18/70 7/18+36/70 7/36+18/70 21/18+18/70 7/18+54/70 7/54+18/70 35/18+18/70 7/18+90/70 7/90+18/70 49/18+18/70