Identify the missing symbol: 5/7 15/35 ?

Check this site.

http://www.mathsisfun.com/equal-less-greater.html

You'll also need to change 5/7 to a fraction with a denominator of 35.

To identify the missing symbol in the series 5/7, 15/35, ?, we need to look for a pattern or relationship between the given fractions.

The numerator of the first fraction is 5, and the numerator of the second fraction is 15. Similarly, the denominator of the first fraction is 7, and the denominator of the second fraction is 35. We can observe that both the numerator and denominator of the second fraction are multiplied by 3 compared to the first fraction.

So, to find the missing fraction, we need to multiply the numerator and denominator of the second fraction by 3:
15 * 3 = 45 (numerator)
35 * 3 = 105 (denominator)

Therefore, the missing fraction is 45/105.