A) \[17\frac{4}{15}\]
B) \[19\frac{2}{15}\]
C) \[18\frac{7}{15}\]
D) \[18\frac{4}{15}\]
Correct Answer: D
Solution :
\[6\frac{2}{3}+15\frac{1}{4}+3\frac{3}{4}-7\frac{2}{5}\] \[\,=6+\frac{2}{3}+15+\frac{1}{4}+3+\frac{3}{4}-7-\frac{2}{5}\] \[=(6+15+3-7)+\left[ \frac{2}{3}+\frac{1}{4}+\frac{3}{4}-\frac{2}{5} \right]\] \[=17+\left[ \frac{2}{3}+1-\frac{2}{5} \right]\] \[\,=17+\left[ \frac{10+15-6}{15} \right]\] \[=17+\frac{19}{15}=17+1+\frac{4}{15}=18\frac{4}{15}\]
You need to login to perform this action.
You will be redirected in
3 sec
