Question

ayuden en con estos 4 ejercicios porfa doy puntos​

Answer 1

Respuesta:

Explicación paso a paso:

-13/23 + -19/23 = -34/23

(3/4 +5/3) + (7+1/5) = (15/12 +20/12) + (35/5 +1/5) = 35/20 + 36/5 = 35/20 +4/20 = 39/20

(-2/5 + 4) - (-1/3 + 1) = (-8/5 +20/5) - (-1/3 + 3/3) = -12/5 + 2/3= -36/15 +10/15 = -26/15

(-3/4 +5/3) - (5/3 - 3/2) = (-9/12 + 20/12) - (10/6 - 9/6) =  11/12 -1/6 = 11/12 - 2/12 =  9/12 = 3/4