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  • Using the appropriate properties of operations of rational numbers evaluate the following 8 by 9 into 4 by 5 + 5 by 6 minus 1 by 5 into 8 by 9 ?

Using the appropriate properties of operations of rational numbers evaluate the following 8 by 9 into 4 by 5 + 5 by 6 minus 1 by 5 into 8 by 9 ?

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eginarraylfrac89 imesfrac45+frac56- frac95 imesfrac89\ \ =frac89 imesfrac45- frac95 imesfrac89+frac56\ \ extTaking common terms, we get,\ =frac89left(frac45-frac95 ight)+frac56\ \ =frac89left(frac4-95 ight)+frac59\ \ =frac89 imes-frac55+frac56\ \ =-frac89+frac56=frac-16+1518=-frac118endarray

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Deependra Verma

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