zad 1 oblicz.
3/4+ 2 1/3
2,7+5 1/4
-10 5/6 + (- 3 1/9)
-0,56 + (-8,4)
15 3/7 + (-9 1/14)
4 13/33+(-15 2/3)
-2,7+(-4,3)
-0,076+ 3,28
Zad 2 oblicz.
-9+5+(-7)+(-8)+45
41+(-35)+(-27)+70-6
(-4,1)+ (-7,25)+3,6+2,1+3,2
(- 1/2)+(- 1/4)+ (-2 3/8)+6 5/16 +8
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1.
¾+2⅓=9/12+2 5/12=2 14/12=3 2/12= 3 ⅙
2,7 +5 1/4 = 2,7 + 5,25= 7,95
-10 5/6 + (- 3 1/9)=-10⅚-3 ¹/₉= -10¹⁴/₅₄ - 3 ⁷/₅₄ = -13 ²¹/₅₄= -13 ³/₁₈= -13 ¹/₆
-0,56 + (-8,4) = -0,56-8,4= -8,96
15 3/7 + (-9 1/14)= 15 ³/₇ - 9 ¹/₁₄= 15 ⁶/₁₄ - 9 ¹/₁₄ =6 ⁵/₁₄
4 13/33+(-15 2/3)=4¹³/₃₃- 15 ²/₃= 4 ¹³/₃₃- 15 ²²/₃₃= -11⁹/₃₃= -11 ³/₁₁
-2,7+(-4,3)= -2,7 - 4,3 = -7
-0,076+ 3,28= 3,204
Zadanie 2.
-9+5+(-7)+(-8)+45=26
41+(-35)+(-27)+70-6= 43
(-4,1)+ (-7,25)+3,6+2,1+3,2= -2,45
(- 1/2)+(- 1/4)+ (-2 3/8)+6 5/16 +8= (-0,5)-0,25-2,375+ 6,3125 +8 = 11,1875