Add 30/70 and 1/18
30/70 + 1/18 is 61/126.
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,
30/70 = 30 × 9/70 × 9 = 270/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
1/18 = 1 × 35/18 × 35 = 35/630 - Add the two like fractions:
270/630 + 35/630 = 270 + 35/630 = 305/630 - 305/630 simplified gives 61/126
- So, 30/70 + 1/18 = 61/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+1/18 30/70+2/18 30/70+1/36 90/70+1/18 30/70+3/18 30/70+1/54 30/70+5/18 30/70+1/90 30/70+7/18