Question

"Question 1 Using appropriate properties find:
(i) -2/3 x 3/5 + 5/2 - 3/5 x 1/6

(ii) 2/5 x (-3/7) - 1/6 x 3/2 + 1/14 x 2/5

Rational Numbers Page 14"

Answer 1

Rational numbers:

A number which can be written in the form p /q , where p and q are integers and q ≠ 0 is called a rational number. For example, 5/3 ,−16 /7 are all rational numbers.

 

Commutative law:

Two rational numbers can be added in any order. We say that addition is commutative for rational numbers. That is, for any two rational numbers a/b and c/d, then,  a / b+c/d =c/d+a/b.

Distributivity of Multiplication over Addition . For all rational numbers a, b and c,

a (b + c) = ab + ac 

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Solution is in the attachment
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