Joanne signed up for 24 dancing lessons she took 3/4 of the by April and 1/5 of them by May .What part of dancing lesson did she take?

Respuesta :

Answer:

[tex]Part = \frac{19}{20}[/tex]

[tex]Lessons = 23[/tex]

Step-by-step explanation:

Given:

[tex]Dancing\ Lessons = 24[/tex]

[tex]April = \frac{3}{4}[/tex]

[tex]May = \frac{1}{5}[/tex]

Required:

Determine the part she took

To solve this, we simply add up the part she took in April and May.

[tex]Part = \frac{3}{4} + \frac{1}{5}[/tex]

Take LCM

[tex]Part = \frac{15 + 4}{20}[/tex]

[tex]Part = \frac{19}{20}[/tex]

Hence, she took [tex]\frac{19}{20}[/tex] of the dancing lesson.

However, to calculate the number of lesson.

We have to multiply [tex]\frac{19}{20}[/tex] by the total dancing lessons.

[tex]Lessons = \frac{19}{20} * 24[/tex]

[tex]Lessons = \frac{19* 24}{20}[/tex]

[tex]Lessons = \frac{456}{20}[/tex]

[tex]Lessons = 22.8[/tex]

[tex]Lessons = 23[/tex] ---- Approximated