Question

A spelling test was given to a class of students 5/6 of the gave all correct answer How many students made one or more than one mistakes
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Answer 1

Step-by-step explanation:

Let there be X number of students in the class

So, if 5/6 of the students gave all correct answer, then 5X/6 students gave all correct answer.

So total number of students who made one or more mistakes is

$x - \frac{5x}{6}$

Which equals to

$\frac{6x - 5x}{6}$

which is equal to

$\frac{x}{6}$

So, X/6 students have made one or more mistakes