how to find the sequence then find the unknown term like 3/10 2/5 blank blank blank blank blak

What do you exactly want us to do?

find the answer

find what is blank is

given only two terms, it is possible to make up a variety of ways to get from one to the other.

However, since the two values are

3/10, 4/10

The easiest rule I can think of is just to add 1/10 to get the next term.

To find the unknown terms in a sequence, we first need to identify the pattern in the given terms.

Looking at the sequence: 3/10, 2/5, blank, blank, blank, blank, blank, we can observe that each term is obtained by multiplying the previous term by 2.

To find the third term, we need to multiply the second term (2/5) by 2:
(2/5) * 2 = 4/5

To find the fourth term, we multiply the third term (4/5) by 2:
(4/5) * 2 = 8/5

To find the fifth term, we multiply the fourth term (8/5) by 2:
(8/5) * 2 = 16/5

Similarly, we continue this pattern to find the sixth term, seventh term, and so on.

So, the sequence can be completed as follows:
3/10, 2/5, 4/5, 8/5, 16/5, 32/5, ...