Question

Обчисліть: 1/5 - (-1/9) + (-5 1/3) + 5/9 - 0,2.

Answer 1

$frac15-left(-frac19right)+left(-5frac13right)+frac59-0,2=frac15+frac19-5frac13+frac59-frac15=\=frac69-5frac13=frac23-frac{16}3=-frac{14}3=-4frac23$