Q91 of 110 Page 242

In each of the following cases, write the rational number whose numerator and denominator are respectively as under:

(a) 5 – 39 and 54 – 6


(b) (–4) × 6 and 8 ÷ 2


(c) 35 ÷ (–7) and 35 –18


(d) 25 + 15 and 81 ÷ 40

(a) Numerator = 5 – 39


⇒ Numerator = -34


Denominator = 54 – 6


⇒ Denominator = 48


⇒ Rational number =


(b) Numerator = -4 × 6


Numerator = -24


Denominator = 8 ÷ 2


Denominator = 4


⇒ Rational number =


=


(c) Numerator =


⇒ Numerator = -5


Denominator = 35 – 18


⇒ Denominator = 17


⇒ Rational number =


(d) Numerator = 25 + 15


⇒ Numerator = 40


Denominator =


⇒ Rational number =


⇒ Rational number =


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89

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(b) if _______ = ______


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C.


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B.


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