Respuestas

2012-10-02T03:04:42+02:00

a_ 1-(1/3)² -  mas -  4/27 × 1/2

b_5/2÷4×3/5 -  mas 5/10 × 7/6

c_3/8 × 5/12 -  menos (1/8)²

 

- = a separado en terminos

2012-10-02T07:11:47+02:00

a) 1-1/9+4/27x1/2       =   1 - 2/9 + 2/27  = 22/27

 

b) 5/2 x 1/4 x 3/5+ 7/12 =  3/8 +7/12 = 92/96

 

c) 5/3 - 1/64 = 320-4/192  = 317/192