Question

How could Erika have used the decimal that she wrote for 1/3 to find the decimal for 2/3

Answer 1

Answer:

Use your decimal for 1/3 and add it to another 1/3 to get your decimal for 2/3

Step-by-step explanation:

Answer 2

Answer:

Erika can twice the decimal value of 1/3 to find the decimal value of 2/3. The decimal value of 2/3 is about 0.67.

Step-by-step explanation:

Let Erika wrote the decimal value for 1/3 . She needs to use this decimal value to find the decimal value of 2/3.

$\frac{1}{3}=0.333...$

Write the fraction value 2/3 in the factor 2 and 1/3.

$\frac{2}{3}=2\times \frac{1}{3}$

Substitute the decimal value of 1/3 in the above equation.

$\frac{2}{3}=2\times (0.333...)$

$\frac{2}{3}=0.666...$

$\frac{2}{3}\approx 0.67$

Erika can twice the decimal value of 1/3 to find the decimal value of 2/3. The decimal value of 2/3 is about 0.67.