a)
4,5-1+2-9/16
--------------- =
(-35/4 * 10/3) ÷ 4/3
5,5- 9/16
------------ =
(-350/12)*¾
4 15/16
--------- =
-21⅞
⁷⁹/₃₅
b)
(2⅗×2⅔)²-(-1)³
----------------- =
(0,123-⅓)²
(66/15)² +1
--------------- =
(⅛-⅓)²
4356/225 +1
---------------- =
(3/24 - 8/24) ²
19 36/100 +1
------------------ =
(-5/24 )²
20 36/100 : 25/576= 469,0944