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Posted byjaehwa September 5, 2020

What is the value of $9$ $\dfrac{2}{7}$ $-$ $2$ $\dfrac{3}{7}$?
A. $6\dfrac{6}{7}$ A. $6\dfrac{6}{7}$
B. $\dfrac{5}{14}$
C. $\dfrac{15}{14}$
D. $1$
E. $\dfrac{12}{7}$

1. $9$ $\dfrac{2}{7}$ $ - $ $2$ $\dfrac{3}{7}$
$ = \dfrac{65}{7}$ $ - $ $\dfrac{17}{7}$
$ = \dfrac{65\times 7}{7\times 7}- \dfrac{17\times 7}{7\times 7}$
$ = \dfrac{455}{49}-\dfrac{119}{49}$$=\dfrac{{455}-{119}}{49}$$=\dfrac{48}{7}$ $= 6\dfrac{6}{7}$ 2. No More Steps

Correct! Nice work!

Posted byjaehwaSeptember 5, 2020Posted inUncategorized

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