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a\()\) 16/9 +3/5
=107/45
b\()\) 4/13--2/17
=51/221--26/221
=77/221
c\()\) -3/2+4/5
=-15/10+8/10
=-7/10
d\()\) 3/-4-1/4
=-1
e\()\) -1/5.5/7
=-1/7
f\()\) 7/8.64/49
=8/7
g\()\) 3/4.15/24
=15/32
A, 5+ ( -12 ) - 10 = -17
B, 25 - (-17) + 24 -12=54
C, 5^6 : 5^4 + 2^3 . 2^2 -225 : 15^2 =56
D, ( -5 - 3). (3 -5 ) : ( -3 + 5)=8
E,4. (13-16) -(3-5).(-3^2) =15
F, 235 - (34 + 135)-100=-34
a: \(=\dfrac{-5}{8}+\dfrac{7}{12}=\dfrac{-15}{24}+\dfrac{14}{24}=\dfrac{-1}{24}\)
b: \(=\dfrac{3}{4}-\dfrac{5}{6}+\dfrac{11}{12}=\dfrac{9}{12}-\dfrac{10}{12}+\dfrac{11}{12}=\dfrac{10}{12}=\dfrac{5}{6}\)
c: \(=\dfrac{6}{36}-\dfrac{1}{36}=\dfrac{5}{36}\)
d: \(=\dfrac{5}{12}+\dfrac{5}{12}=\dfrac{10}{12}=\dfrac{5}{6}\)
e: \(=\dfrac{-8}{56}-\dfrac{7}{56}=\dfrac{-15}{56}\)
f: \(=\dfrac{-5}{15}+\dfrac{3}{25}=\dfrac{-25}{75}+\dfrac{9}{75}=\dfrac{-16}{75}\)
a, (-25) + 276 - (276 - 25)
= (-25) + 276 - 276 + 25
= [ (-25) + 25] - (276 - 276)
= 0 - 0
= 0
b, 24 x 46 + 24 x 53 + 24
= 24 x ( 46 + 53 + 1)
= 24 x 100
= 2400
1,
a,-3/5
b,-1/2
c,19/39
d,1/4
e,-39/40
f,-59/56
2,
a,=
b,<
c,>
d,<
k cho mình nha
a) 65 ; b) -1700; c) 120; d)= (-8). 2=-16 ; e)= 24. ( -45+ -55) = 24. (-100)= -2400
f) 9
A) (-13).(-5)=13.5=65
B) (-4).17.25=(-4).25.17=(-100).17=-1700
C) (-4).(-5).(-6)=20.(-6)=-120
D) (-3-5).(-3+5)=(-8).2=-16
E) 24.(-45)+24.(-55)=24.(-45+-55)=24.(-100)=-2400