Question

Simplify: $2\frac{1}{5}+2\frac{5}{7}\times \frac{7}{19}-\frac{1}{4}\times 3$

Answer 1

$2\frac{1}{5}+2\frac{5}{7}\times \frac{7}{19}-\frac{1}{4}\times 3$

$=\frac{11}{5}+\frac{19}{7}\times \frac{7}{19}-\frac{3}{4}$

$=\frac{11}{5}+1-\frac{3}{4}$

$=\frac{11}{5}+\frac{4-3}{4}=\frac{11}{5}+\frac{1}{4}=\frac{44+5}{20}=\frac{49}{20}$