Question

5(3*7^15-19*7^14)/7^16+3*7^15

Answer 1

$frac{5(3*7^{15}-19*7^{14})}{7^{16}+3*7^{15}}=frac{7^{14}*5(3*7-19)}{7^{15}(7+3)}=frac{5*2}{7*10}=frac{1}{7}$