Question

Cristina uses a ruler to measure the length of her math textbook. She says that the book is 4/10 meter long. Is her measurement in simplest form? If not, what is the length of the book in the simplest form?

Answer 1

2/5

Explanation:

in 4/10, both the numerator (4) and denominator (5) are multiples of 2, as 4 = 2 * 2 and 10 = 2 * 5. thus, we can divide both the numerator and denominator by 2 to get

(4/2) / (10/2) = 2/5 as our answer.