1)(-5/12 -3/4)/ 7/3 +16/3 * 0.75
(-5/12-9/12)/ 7/3 + 16/3*75/100
(-14/12)/7/3 + 16/3*3/4
-14/12*3/7 + 4
-1/2+4
=3,5
2)(-2.5 -11/6)/13/9 - 32/9 *(-9/4)
(-25/10-11/6)/13/9 - 32/9*(-9/4)
(-75/30-55/30)*9/13 - (-8)
(-130/30)*9/13 + 8
3+8
=11
(-3.8+7/3)*(-15/8) + 25/6 / (-5/3)
(-38/10+7/3)*(-15/8) + 25/6*(-3/5)
(-114/30+70/30)*(-15/8) + (-5/3)
(-22/15)*(15/8)
11/4-5/3
=13/12