Question

por favor desarrollar puntos 1 2 3 doy 127 puntos hacerlo completo

Answer 1

listo, la respuesta esta en la imagen adjunta 

Answer 2

1)

a. 8/9 - 3/10 = (80 - 27)/90 = 53/90

b. -3/5 - 1/3 = -(9 + 5)/15 = -14/15

c. 8/15 - (-5/12) = (32 + 25)/60 = 19/20

d. -4/9 - (-5/18) = (5 - 8)/18 = -1/6

e. 3/4 - (-7/3) = (9 + 28)/12 = 37/12

f. 7/2 - (-9/4) = (14 + 9)/4 = 23/4

2)

a. 6/13 - 4/6 - 1/3 = 6/13 - 1 = -7/13

b. 7/6 - (-2/5) - 3/4 = 5/12 + 2/5 = 49/60

c. -2/3 - (-7/6) = -4/6 + 7/6 = 1/2

d. -13/5 - (-72/5) = 72/5 - 13/5 = 59/5

e. -21/34 - (-17/9) = (578 - 189)/306 = 389/306

3) V | F | V