Select those which can be written as a rational number with denominator 4 in their lowest form
7/8, 64/16, 36/-12, -16/17, 5/-4, 140/28
Solution:
Among the given set,
64/16 = 16/4
36/-12 = 12/-4
-5/4 is already with denominator 4
140/28 = 20/4
Therefore, except -16/17 all the other rational numbers among the given set can be written as rational numbers with a denominator as 4.
Among these rational numbers, the denominator -4 is the lowest and thus the required rational number is 5/-4
✦ Try This: Select those which gives integer as result from 7/8, 64/16, 36/-12, -16/17, -5/4, 140/28
Among the given set,
64/16 = 4 which is an integer
36/-12 = -3 which is an integer
140/28 = 5 which is an integer
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 1
NCERT Exemplar Class 8 Maths Chapter 1 Problem 101
Select those which can be written as a rational number with denominator 4 in their lowest form 7/8, 64/16, 36/-12, -16/17, 5/-4, 140/28
Summary:
Among the set 7/8, 64/16, 36/-12, -16/17, 5/-4, 140/28, the required rational number is 5/-4 in its lowest form
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