How many eighths in four and a half?

To find out how many eighths are in four and a half, we first convert the whole number part, which is 4, to eighths by multiplying it by 8 (since there are 8 eighths in one whole). 4 x 8 = 32 eighths. Then we add the remaining half, which is 4 eighths (since half of 8 is 4). Therefore, in total, there are 32 + 4 = 36 eighths in four and a half.