Question

1. find $3\frac{6}{8}-1\frac{5}{8}$.
2. does a whole on the model need to be broken before subtracting?
3. ? because the model ? show enough eighths to subtract $\frac{5}{8}$.

Explanation:

Step1: Subtract whole numbers

$3 - 1 = 2$

Step2: Subtract fractional parts

$\frac{6}{8} - \frac{5}{8} = \frac{1}{8}$

Step3: Combine results

$2 + \frac{1}{8} = 2\frac{1}{8}$

Step4: Evaluate fraction subtraction need

The fractional part of the minuend $\frac{6}{8}$ is greater than $\frac{5}{8}$, so no breaking is needed.

Answer:

$2\frac{1}{8}$
No, because the model does show enough eighths to subtract $\frac{5}{8}$.