Salve by using property:-
-2 [3/4 + (-1/2)]
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-2[3/4+(-1/2)]
=-2(3/4-1/2)
=-2((3-2)/4) (LCM of 2,4=4)
=-2(1/4)
=-2*1/4
=-1/2 Ans.
=-2(3/4-1/2)
=-2((3-2)/4) (LCM of 2,4=4)
=-2(1/4)
=-2*1/4
=-1/2 Ans.
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