Add 98/70 and 1/18
1st number: 1 28/70, 2nd number: 1/18
98/70 + 1/18 is 131/90.
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,
98/70 = 98 × 9/70 × 9 = 882/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
1/18 = 1 × 35/18 × 35 = 35/630 - Add the two like fractions:
882/630 + 35/630 = 882 + 35/630 = 917/630 - 917/630 simplified gives 131/90
- So, 98/70 + 1/18 = 131/90
In mixed form: 141/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70+2/18 98/70+1/36 98/70+3/18 98/70+1/54 98/70+5/18 98/70+1/90 98/70+7/18