(i) 250/400 = \(\frac{5\times 50}{8\times 50}\) = 5/8
Two more fractions are 25/40, 30/48
(ii) 180/200 = \(\frac{9\times20}{10\times20}\) = 9/10
Two more fractions are 18/20, 27/30
(iii) 660/990 = \(\frac{2\times 330}{3\times330}\) = 2/3
Two more fractions are 20/30, 200/300
(iv) 180/360 = \(\frac{1\times 180}{2\times180}\) = 1/2
Two more fractions are 20/40, 30/60
20/40, 30/60 = \(\frac{2\times 110}{5\times110}\) = 2/5
(v) 220/550 = \(\frac{2\times 110}{5\times110}\) = 2/5
Two more fractions are 20/40, 40/100
Now these can be matched as
(i) – (d),
(ii) – (e),
(iii) – (a),
(iv) – (c),
(v) – (b)
