What is ${3} \dfrac{1}{8} - {2}\dfrac{4}{7}$?A. $\dfrac{31}{56}$ A. $\dfrac{31}{56}$ B. $ {1} \dfrac{31}{56}$ C. $ {2} \dfrac{31}{56}$ D. $ {4} \dfrac{31}{56}$ E. $ {3} \dfrac{31}{56}$
Show Answer Show The First Step 1. ${3} \dfrac{1}{8} - {2}\dfrac{4}{7}$$ = {3} + \dfrac{1}{8} - {2} - \dfrac{4}{7}$$ = {3} - {2}+ \dfrac{1}{8} - \dfrac{4}{7}$Show Next Step 2. $ = {1} + \dfrac{1}{8} - \dfrac{4}{7}$$ = \dfrac{8}{8} + \dfrac{1}{8} - \dfrac{4}{7}$Show Next Step 3. $ = \dfrac{{8}+{1}}{8} - \dfrac{4}{7}$$ = \dfrac{{9}}{8} - \dfrac{4}{7}$Show Next Step 4. $ =\dfrac{{9} \times {7}}{{8} \times {7}} - \dfrac{{4}\times {8}}{{7} \times {8}}$Show Next Step 5. $ = \dfrac{{63}}{{56}} - \dfrac{32}{56}$$ = \dfrac{{63}-{32}}{56}$$=\dfrac{31}{56}$ No More Steps Practice Again Correct! Nice work!
