$\"\"$

The expression is “one and one third times a number is $\"\"$ ”.

Let n represent the number.

The word “equals” can be represented as “=” symbol.

The word “times” indicates multiplication and the symbol is “ $\"\"$ ”.

Rewrite the sentence into expression as \ \

$\"\"$ $\"\"$

The equation is $\"\"$

First write the mixed number $\"\"$ into improper fraction.

The improper fraction of $\"\"$ ( $\"\"$ )

The equation is $\"\"$ $\"\"$

$\"\"$ (Multiply each side by $\"\"$ )

$\"\"$ (Cancel common terms)

$\"\"$ (Multiply: $\"\"$ )

$\"\"$

The number is $\"\"$ .