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# What Two Numbers Come Next In The Sequence?? HELP

What Comes Next In The Sequence????

15 , 16 3/4 , 18 1/2???

# HELP!!!

### 3 Answers by Expert Tutors

Glenn M. | Math and Science TutorMath and Science Tutor
4.9 4.9 (401 lesson ratings) (401)
1

I'm going to use decimal notation to help minimize any confusion here.

hence, 16 3/4 = 16.75     and 18 1/2 = 18.5

The difference in the first two numbers is : 16.75 - 15 = 1.75
The difference in the 3rd and the 2nd numbers : 18.5 - 16.75 = 1.75

So it appears that we are adding 1.75 to each number to get the next value.

So the next 2 numbers in this sequence would be

18.5 + 1.75 = 20.25
20.25 + 1.75 = 22.0

Glenn
Ryan S. | Mathematics and StatisticsMathematics and Statistics
4.8 4.8 (10 lesson ratings) (10)
1
One strategy is to see if there is a constant difference between terms. If so, it is an arithmetic sequence. You get lucky here because there is a constant difference; it is 1 3/4 or 7/4 or 1.75. So to get the next term, add 1.75. The next two numbers (following the mixed number format of the question) are 20 1/4 and 22.