What is ${8} \dfrac{2}{7} - {7}\dfrac{4}{9}$?A. $\dfrac{53}{63}$ A. $\dfrac{53}{63}$ B. $ {1} \dfrac{53}{63}$ C. $ {2} \dfrac{53}{63}$ D. $ {4} \dfrac{53}{63}$ E. $ {3} \dfrac{53}{63}$
Show Answer Show The First Step 1. ${8} \dfrac{2}{7} - {7}\dfrac{4}{9}$$ = {8} + \dfrac{2}{7} - {7} - \dfrac{4}{9}$$ = {8} - {7}+ \dfrac{2}{7} - \dfrac{4}{9}$Show Next Step 2. $ = {1} + \dfrac{2}{7} - \dfrac{4}{9}$$ = \dfrac{7}{7} + \dfrac{2}{7} - \dfrac{4}{9}$Show Next Step 3. $ = \dfrac{{7}+{2}}{7} - \dfrac{4}{9}$$ = \dfrac{{9}}{7} - \dfrac{4}{9}$Show Next Step 4. $ =\dfrac{{9} \times {9}}{{7} \times {9}} - \dfrac{{4}\times {7}}{{9} \times {7}}$Show Next Step 5. $ = \dfrac{{81}}{{63}} - \dfrac{28}{63}$$ = \dfrac{{81}-{28}}{63}$$=\dfrac{53}{63}$ No More Steps Practice Again Correct! Nice work!
