Add 8/18 and 98/70
1st number: 8/18, 2nd number: 1 28/70
8/18 + 98/70 is 83/45.
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,
8/18 = 8 × 35/18 × 35 = 280/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
98/70 = 98 × 9/70 × 9 = 882/630 - Add the two like fractions:
280/630 + 882/630 = 280 + 882/630 = 1162/630 - 1162/630 simplified gives 83/45
- So, 8/18 + 98/70 = 83/45
In mixed form: 138/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+98/70 8/36+98/70 24/18+98/70 8/54+98/70 40/18+98/70 8/90+98/70 56/18+98/70