Respuestas
El resultado de las operaciones es:
a) 3/8 + 5/7 = 61/50
b) 4/9 + - 3/8 = 5/72
c) - 11/6+ - 3/4 = - 31/12
d) 3/4 + - 2/5 + -7/10 = -7/20
e) 5/9 + -2/3 + 7/6 = 19/18
f) 2*3/5 + 1*2/3 - 7/15 = 21/15
g) 2/5 + 7/15 + -5/3 = -4/5
h) -4/9 + -3/4 + -7/12 = -32/18 = -16/9
i) 3*4/9+ -1*2/3 + -2*1/6 = 1/3
Procedemos a realizar cada una de las operaciones
a) 3/8 + 5/7
= (21+40)/56
= 61/50
b) 4/9 + - 3/8
= 4/9 - 3/8
= (32-27)/72
= 5/72
c) - 11/6+ - 3/4
= - 11/6 - 3/4
= (-22-9)/12
= - 31/12
d) 3/4 + - 2/5 + -7/10
= 3/4 - 2/5 -7/10
= (15 - 8 - 14)/20
= -7/20
e) 5/9 + -2/3 + 7/6
= 5/9 - 2/3 + 7/6
= (10-12+21)/18
= 19/18
f) 2*3/5 + 1*2/3 - 7/15
= 6/5 + 2/3 - 7/15
= (18+10-7)/15
= 21/15
g) 2/5 + 7/15 + -5/3
= 2/5 + 7/15 - 5/3
= (6+7-25)/15
= -12/15
= -4/5
h) -4/9 + -3/4 + -7/12
= -4/9 - 3/4 - 7 /12
= (-16-27-21)/36
= -64/36
= -32/18 = -16/9
i) 3*4/9+ -1*2/3 + -2*1/6
= 12/9 - 2/3 - 2/6
= (24-12-6)/18
= 6/18
= 1/3
Respuesta:
Explicación paso a paso: