Question

Jalen tries to find the difference: 1 - 2 He makes an error. Highlight Jalen's first error, 1 9 13

Answer 1

the given expression is

$1\frac{2}{3}-\frac{7}{9}$

the calculation is given as follows,

$\begin{gathered} \frac{5}{3}-\frac{7}{9}=\frac{10-7}{9}=\frac{1}{3} \\ \end{gathered}$

first we jump from 7/9 to 1

so the length will be

= 1 - 7/ 9

= (9-7)/9

= 2/9

now we have 2/9

then we jump from 1 to 1 2/3 or 1 to 5/3

so ,

$\begin{gathered} 1\frac{2}{3}-1 \\ \frac{5}{3}-1 \\ \frac{5-3}{3}=\frac{2}{3} \end{gathered}$

now the total length is

2/9 + 2/3

$\frac{2}{9}+\frac{2}{3}=\frac{2+6}{9}=\frac{8}{9}$

it is clearly seen that at the place of 4/9 there will be 8/9

6/9 will be 8/9.