Add 7/70 and 70/18
1st number: 7/70, 2nd number: 3 16/18
7/70 + 70/18 is 359/90.
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,
7/70 = 7 × 9/70 × 9 = 63/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
70/18 = 70 × 35/18 × 35 = 2450/630 - Add the two like fractions:
63/630 + 2450/630 = 63 + 2450/630 = 2513/630 - 2513/630 simplified gives 359/90
- So, 7/70 + 70/18 = 359/90
In mixed form: 389/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70+70/18 7/70+70/36 21/70+70/18 7/70+70/54 35/70+70/18 7/70+70/90 49/70+70/18