8) Subtract : a) (-3/4) from (1/2) 9) What should be added to (-7/20) to get (-2/5)? 10) The sum of two rational numbers is (-3/7). If one of the number is (-5/8) find the other. 11) The sum of two rational numbers is (-5/8). If one of the number is (-6/11), find the other number. 12) Find the product of : 1) 5/9, -2/5 2) -5, -3/15 13) Verify the property a x b = b x a by taking : 1) a = (-12/7), b = (-21/5) 2) a = 0 , b = (-13/3) 14) Verify the property a x ( b x c ) = (a x b) x c by taking 1) a = (7/5), b = (-9/4), c = (1/2) 2) a = 1, b = (-13/5), c = (3/5) 15) Verify the property ax(b+c)=(axb)+(axc) by taking: 1) a = (1/3), b = 0, c = (-7/6) 2) a = -2, b = (9/5), c = (-2/15) 16) The product of two rational numbers is 6. If one of them is 8, find the other number.
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17) Find the rational number between: 1) 3 and 4 2) -7 and -6 18) Find three rational numbers between: 1) -5 and 8 2) ( -1/3 ) and (1/2)
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