Let be "n" Irene's height (in inches), "t" Theresa's height (in inches) and "j" Jane's height (in inches).
You know Irene's height:
You can write the Mixed number as an Improper fraction as following:
- Multiply the Whole number by the denominator.
- Add the product to the numerator.
- Use the same denominator.
Then:
Now convert the other Mixed numbers to Improper fractions:
Based on the information given in the exercise, you can set up the following equation that represents Theresa's height:
Adding the fractions, you get:
Now you can set up this equation for Jane's height: