8.
Adding four and subtracting one is the same as adding three. So, to see if a number can be in this pattern, subtract five and check if the result is a multiple of three. If it is, it can be in the pattern.
Fun fact: to check if something is a multiple of three, add all the digits up and see if that is a multiple of three. If you don’t know, repeat the process of adding the digits.
K = 
(F - 32) + 273.15
To cancel out the 5/9, you can either multiply everything by the denominator and divide it down, or multiply everything by the reciprocal of the fraction (
. Multiplying by the reciprocal is definitely easier if you can use a calculator:
K = (F - 32) + 491.67
Subtract 491.67 from both sides:
K - 491.67 = F - 32
Finish off by adding 32 to both sides:
K - 459.67 = F
Therefore, F = K - 459.67.
Hope this helps! :)
7 and 1/8. all you need to do is add these together by getting a common denominator of eight
