Add 5/18 and 15/70
5/18 + 15/70 is 31/63.
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,
5/18 = 5 × 35/18 × 35 = 175/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
15/70 = 15 × 9/70 × 9 = 135/630 - Add the two like fractions:
175/630 + 135/630 = 175 + 135/630 = 310/630 - 310/630 simplified gives 31/63
- So, 5/18 + 15/70 = 31/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+15/70 5/18+30/70 5/36+15/70 15/18+15/70 5/18+45/70 5/54+15/70 25/18+15/70 5/18+75/70 5/90+15/70 35/18+15/70