Oblicz:
1/3 - 0,3 =
6,5 : ( 2 1/2 * 6 - 0,5 ) =
( 5 - 1 1/2 ) : ( 2 3/8 - 1,75) =
3 3/4 * 0,8 + 2 2/3 * 0,3 =
5/7 * 4,2 - ( 1 1/4 - 0,5)=
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1) (⅕+1,3):3/2 - (18¾-4,95):2i3/10
------------------------------------------- =
1⅕:0,6 - 2⅖·1,25
(0,2+1,3):1,5-(18,75-4,95):2,3
= ---------------------------------------- =
1,2 : 0,6 - 2,4· 1,25
1,5: 1,5 - 13,8 : 2,3
= --------------------------- =
2 - 1,92
1 - 6
= ------- =
0,08
-5
= ----- =
0,08
-500
= ------- = -62,5
8
2) (⅓+1⅔·1,2):1⅔ - (1,75:1⅛ - 2⅓:5,25)·0,9
----------------------------------------------------- =
(5⅚ - 5,5):0,3
(1⅓+5/3 ·1,2):5/3 - (1¾:1⅛-2⅓:5¼)·0,9
= --------------------------------------------------- =
(5⅚-5½):0,3
(1⅓+2)·⅗ - (7/4·8/9 - 7/3·4/21)· 0,9
= ----------------------------------------------- =
(5⅚-5i3/6):3/10
3⅓·⅗ - (14/9 - 4/9)· 9/10
= --------------------------------- =
2/6 · 10/3
10/3· ⅗ - 10/9 · 9/10
= ----------------------------- =
10/9
2 - 1
= -------------- =
10/9
= 1 · 9/10 =9/10
3) (16,5-13i7/9)· 18/33 + 2⅕·(8/33 - 1/11) + 2/11
----------------------------------------------------------- =
(6¾+5,5)· 1/7 - ¾
(16½-13i7/9)·18/33 + 11/5·(8/33 - 3/33) + 2/11
= ------------------------------------------------------------ =
12,25 · 1/7 - ¾
(15i27/18 - 13i14/18) · 18/33 + ⅓ + 2/11
= ----------------------------------------------------- =
12¼ · 1/7 - ¾
2i13/18 · 18/33 + 11/33 + 6/33
= -------------------------------------- =
49/4 · 1/7 - ¾
49/18 · 18/33 + 17/33
= ------------------------------ =
7/4 - ¾
49/33 + 17/33
= ------------------------ =
1
= 66/33 =2
4) 3⅓· [5 - (2½-5/2)]
-------------------------- · 6⅘ =
3⅔ + ⅜:(3½-⅛)
10/3 ·(5 - 0)
= --------------------- · 34/5 =
3⅔ + ⅜:(3i4/8 - ⅛)
10/3 · 5
= ------------------ · 34/5 =
3⅔ + ⅜:3⅜
50/3
= ---------------- · 34/5 =
3⅔ + ⅜ : 27/8
50/3
= --------------- · 34/5 =
3⅔ + ⅜ · 8/27
50/3
= ---------------- · 34/5 =
3i6/9 + 1/9
50/3
= ---------- · 34/5 =
3i7/9
= 50/3 : 34/9 · 34/5 = 50/3 · 9/34 · 34/5 = 30