1.

Number system show that subtraction is not associative for 4/7-3/5-1/2

Answer»

to show that the system is not associative4/7-3/5-1/2=20-21/35 -1/2=-1/25-1/2=-2-25/50=-27/50--1let's rearrange the terms4/7-1/2-3/5=8-7/14 -3/5=1/14-3/5=5-42/70=-37/70---2hence 1 is not equal to 2hence the system is not associative because after rearranging the terms we do not get the same result.

4/7-3/5-1/2=-1/35-1/2=-37/70

4/7-(3/5+1/2)=4/7-(11/10)=-37/704/7-1/2-3/5=1/14-3/5=-37/70



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