Respuesta :
Answer: 21/8
Explanation
Imagine you had two whole cakes. Split each cake into 8ths.
You'll have 2*8 = 16 slices so far.
Now imagine a third cake that has 5 slices remaining (3 are eaten). This unfinished 3rd cake is 5/8 of a whole cake.
Add those 5 slices to the 16 we calculated earlier to get 16+5 = 21 slices total. Each slice is 1/8th of a cake so we can conclude that the mixed number 2 & 5/8 converts to the improper fraction 21/8
Here's how we can use a formula
a & b/c = (a*c + b)
2 & 5/8 = (2*8 + 5)/8
2 & 5/8 = (16 + 5)/8
2 & 5/8 = 21/8
Notice how 21/8 = 2 remainder 5. The quotient is the number of whole cakes. The remainder 5 represents the numerator of the fractional portion, so it leads to the 5/8 portion.