Question

A rational number equivalent to 7/18 is​

Answer 1

SOLUTION

TO DETERMINE

A rational number equivalent to 7/18 is

CONCEPT TO BE IMPLEMENTED

RATIONAL NUMBER

A Rational number is defined as a number of the form $\displaystyle \sf{ \frac{p}{q} \: }$

Where p & q are integers with $q \ne \: 0$

EXAMPLE

$\displaystyle \sf{2,- 1, \frac{1}{3} , - \frac{12}{23}} \: are \: the \: examples \: of \: rational \: numbers$

EVALUATION

Here the given rational number is

$\displaystyle \sf{ \frac{7}{18} }$

So an rational number equivalent to given rational is

$\displaystyle \sf{ \frac{7 \times 5}{18 \times 5} = \frac{35}{90} }$

FINAL ANSWER

A rational number equivalent to

$\displaystyle \sf{ \frac{7}{18} \: \: is \: \: \frac{35}{90} }$

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Answer 2

Given : 7/18

To Find :  rational number equivalent to 7/18

Solution:

rational number = p/q  where p . q are integers and q ≠ 0

Equivalent rational  = ap/aq    where  a ≠  0

7/18

= 7 * 2 / 18 *2  = 14/36

= 7 * 3 / 18 *3  =  21/54

= 7 * 4 / 18 *4  = 28/72

= 7 * 5 / 18 *5  = 35/90

= 7 * 10 / 18 *10  = 70/180

Easiest way add equal number of zeroes in right of numbers in numerator and denominator

7/18 = 70/180  = 700/1800  = 7000/18000

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