Name: Introduction to Operations on Simple Fractions
Uploaded: 2019-07-19
Duration: 6 min 45 s
Description: In this video, Addition, subtraction, divison and multiplication of Fractions are discussed. The content in this video is helpful to solve the related problems on this topic.

Question

Find the missing numerator and denominator of the given equivalent rational number.

\frac{- 5}{- 7} = \frac{?}{28} = \frac{?}{42}

Accepted Answer

Given $\frac{- 5}{- 7} = \frac{}{28}$

Here, we need to find the missing value.

If the value of two or more rational numbers are same, they are called equivalent rational numbers.

To obtain a rational number equivalent to the given rational number, we multiply or divide both the numerator and the denominator of the given rational number by the same non-zero integer.

We know, $- 7 \times - 4 = 28$

To make the denominator $28$ , we need to multiply the numerator and denominator by $- 4$ .

So, $\frac{- 5}{- 7} = \frac{- 5 \times - 4}{- 7 \times - 4} = \frac{20}{28}$

Hence, the missing value is $20$ .

Given $\frac{- 5}{- 7} = \frac{}{42}$

Here, we need to find the missing value.

We know, $- 7 \times - 6 = 42$

To make the denominator $42$ , we need to multiply the numerator and denominator by $- 6$ .

So, $\frac{- 5}{- 7} = \frac{- 5 \times - 6}{- 7 \times - 6} = \frac{30}{42}$

Hence, the missing value is $30$ .

Find the missing numerator and denominator of the given equivalent rational number.
$\frac{- 5}{- 7} = \frac{?}{28} = \frac{?}{42}$

Important Questions on Rational Numbers

Learn and Prepare for any exam you want !

Find the missing numerator and denominator of the given equivalent rational number. -5-7=?28=?42

Important Questions on Rational Numbers

Learn and Prepare for any exam you want !

Find the missing numerator and denominator of the given equivalent rational number.
$\frac{- 5}{- 7} = \frac{?}{28} = \frac{?}{42}$