Oblicz
a) 1 cała 5/6 - 3 całe 1/3
b) 4,3 - 7,5
c) -4,5 - 2 całe 1/4
d) - 3 całe 1/6 -(-5 całe 5/6 )
e) 7 całych 1/3 +(-4 całę 5/6)
f) -5 całe 4/7 +7
g) 1,23 -9
h ) -6-(-4 całe 5/9)
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a)
1 cała 5/6 - 3 całe 1/3 =
= 11/6 - 10/3 =
= 11/6 - 20/6 =
= -9/6 =
= -3/2 =
= -1,5
==============================
b)
4,3 - 7,5 =
= -3,2
==============================
c)
-4,5 - 2 całe 1/4 =
= -4,5 - 2,25 =
= -6,75
==============================
d)
- 3 całe 1/6 -(-5 całe 5/6 ) =
= -19/6 + 35/6 =
= 16/6 =
= 2 i 4/6 =
= 2 i 2/3
==============================
e)
7 całych 1/3 +(-4 całę 5/6) =
= 22/3 - 29/6 =
= 44/6 - 29/6 =
= 15/6 =
= 2 i 3/6
==============================
f)
-5 całe 4/7 + 7 =
= -5 i 4/7 + 6 i 7/7 =
= -39/7 + 49/7 =
= 10/7 =
= 1 i 3/7
==============================
g)
1,23 - 9 =
= -7,77
==============================
h )
-6-(-4 całe 5/9) =
= -6 + 41/9 =
= -5 i 9/9 + 41/9 =
= -54/9 + 41/9 =
= -13/9 =
= -1 i 4/9
a) 1 5/6 - 3 1/3 = 11/6 - 10/3 = 11/6 - 20/6 = - 9/6 = - 1 3/6 = - 1 1/2
b) 4,3 - 7,5 = - 3,2
c) - 4,5 - 2 1/4 = - 4,5 - 2,25 = - 6,75
d) - 3 1/6 - (- 5 5/5) = - 3 1/6 + 5 5/6 = 2 4/6 = 2 2/3
e) 7 1/3 + (- 4 5/6) = 7 1/3 - 4 5/6 = 7 2/6 - 4 5/6 = 44/6 - 29/6 = 15/6 = 2 3/6
f) - 5 4/7 + 7 = - 5 4/7 + 6 7/7 = - 39/7 + 49/7 = 10/7 = 1 3/7
g) 1,23 - 9 = - 7,77
h) - 6 - (- 4 5/9) = - 6 + 4 5/9 = - 6 + 41/9 = - 5 9/9 + 41/9 = - 54/9 + 41/9 = -13/9 = -1 4/9