3.20 b) Given the resistances of 1 Ω, 2 Ω, 3 Ω, how will be combine them to get an equivalent resistance of (iii) 6 Ω
Question 6. Let ∗ be the binary operation on N given by a ∗ b = L.C.M. of a and b. Find
(v) Which elements of N are invertible for the operation ∗?
Write these in ascending and also in descending order.
Which is the larger fraction?
You get one-fifth of a bottle of juice and your sister gets one-third of the same size of a bottle of juice. Who gets more?
one third is greater potion than one fifth
Is in its simplest form?
Write the simplest form of :
Find five equivalent fractions of each of the following:
Identify the fractions in each. Are these fractions equivalent?
Give example of four equivalent fractions.
Are and ; and ; and and equivalent? Give reason
Fill up using one of these: ‘’, ‘’ or ‘’
A fraction is given. How will you decide, by just looking at it, whether, the fraction is
(a) less than ?
(b) equal to ?
Give a proper fraction :
(a) whose numerator is and denominator is
(b) whose denominator is and numerator is
(c) whose numerator and denominator add up to . How many fractions of this kind can you make?
(d) whose denominator is more than the numerator.
(Give any five. How many more can you make?)
How many fractions lie between and ? Think, discuss and write your answer?
Can you show any other fraction between and ?Write five more fractions that you can show.
Show and on a number line.
Show on a number line.
Subtract from .