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the shape of the following things are (a) Your instrument box- Cuboid (b) A brick- Cuboid (c) A matchbox-Cuboid (d) A road-roller- Cylinder (e) A sweet laddu-Sphere
The fractions are shown below using greater than or less than sign                      (i)                           (ii)                         (iii)        
Yes,  is in its simplest form because 49 and 64 has no common divisor.
(i)                                       (ii)                          (iii)                              (iv)  all fractions in it simplest form is   So all fractions are equivalent
  and ;  and    are not equivalent because    and    but 
(a) If the numerator is smaller than the denominator, then the fraction will be less than . (b) If the numerator is equal to the denominator, then the fraction will be equal to .
A proper fraction whose: (a) numerator is  and denominator is  =                                                                                                                                        (b) denominator is and numerator is   =                       (c) numerator and denominator add up to .  Pairs of numbers having sum 10 =  Therefore, the proper fractions are  (d) denominator is ...
There are infinite number of fractions between  and . A fraction is of form  and for a number lying between  and , the numerator has to be less than the denominator. 
Yes. There are infinite number of fraction between and  (Numerator is less than denominator) Five more fractions are: 
First, we write  as  and divide the number line in 10 equal parts.
First we write  as  and  divide the number line into 5 equal parts.  
   Subtraction of   from  is given by
     Addition of    and  is given by