efectué las operaciones indicadas y exprese su resultado en la forma mas simple NECESITO LA RESPUESTA RAPIDO PORFA
a )2/3.3/4+5/6=
b) 3/8+2/3.6/10 + -7/20=
c) 5/9+ -3/8:3/11=
d) 5/12:3/4-4/5=
e) 5/6-3/4 7/12+1/3 =
f) 2-1/2 /3+1/3=
Respuestas a la pregunta
Respuesta:
a) (2/3)(3/4)+5/6 = 6/12 + 5/6
= 3/6 + 5/6
= 8/6
= 4/3
b) 3/8+(2/3)(6/10)+(-7/20) = 3/8+12/30-7/20
= (45/120)+(48/120)-(42/120)
= 93/120 - 42/120
= 51/120
c) 5/9+(-3/8)÷(3/11) = 5/9+(-33/24)
= 40/72 + (-99/72)
= 40/72 - 99/72
= 59/72
d) 5/12÷3/4-4/5 = 20/36 - 4/5
= 5/9 - 4/5
= 25/45 - 36/45
= -11/45
e) 5/6-(3/4)(7/12)+1/3 = 5/6-21/48+1/3
= 80/96-42/96+32/96
= 112/96-42/96
= 80/96
= 10/12
= 5/6
(2-1/2) / (3+1/3) = (4/2-1/2)/ (9/3+1/3)
= (3/2)/(10/3)
= 9/20