Question

what is value of x
$x \times \frac{5}{10 + 5 \frac{25}{5} } = 100 \times 10$
​

Answer 1

Answer:

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Step-by-step explanation:

Textbooks Mathematics Grade 10 Algebraic Expressions Simplification Of Fractions

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1.8 Simplification of fractions (EMAQ)

We have studied procedures for working with fractions in earlier grades.

a

b

×

c

d

=

ac

bd

(b≠0;d≠0)

a

b

+

c

b

=

a+c

b

(b≠0)

a

b

÷

c

d

=

a

b

×

d

c

=

ad

bc

(b≠0;c≠0;d≠0)

Note: dividing by a fraction is the same as multiplying by the reciprocal of the fraction.

In some cases of simplifying an algebraic expression, the expression will be a fraction. For example,

x2+3x

x+3

has a quadratic binomial in the numerator and a linear binomial in the denominator. We have to apply the different factorisation methods in order to factorise the numerator and the denominator before we can simplify the expression.

x2+3x

x+3

=

x(x+3)

x+3

=x(x≠−3)

If x=−3 then the denominator, x+3=0 and the fraction is undefined.