Question

Express 3 by 5 as a rational number with denominator

Answer 1

Answer:

(i) 20

3/5 = (3 × 4)/(5 × 4) = 12/20

(ii) -20

3/5 = 3 × (-4)/5 × (-4) = -(12/20)

(iii) 45

3/5 = (3 × 9)/(5 × 9) = 27/45

(iv) 25

3/5 = (3 × 5)/(5 × 5) = 15/25

(v) – 35

3/5 = (3 × -7)/(5 × -7) = -(12/35)

Answer 2

Given:

A rational number$\frac{3}{5}$.

To Find:

The rational number that is equaivalent to $\frac{3}{5}$.

Solution:

A rational number is in the form of $\frac{m}{n}$ where $n\neq 0$, and m can be any integer.

To express a rational number with a denominator, the numerator and denominator of the respective rational number are multiplied by a non-zero number.

Multiply the numerator and denominator of the fraction $\frac{3}{5}$with 5.

$\frac{3\times 5}{5\times 5} =\frac{15}{25}$

Thus, $\frac{15}{25}$ is a rational number equivalent to $\frac{3}{5}$.