Question

CALCULO DE FRACCIONES

a) 2- ( 1/3 + 2/5 )

b) ( 2/3 - 4/5) - ( -3 - 1/2 )

c) 3/4 : ( 2/5 + 5/3 )

d) ( 5+ 3/2 ) . ( 2 - 1/4 )

Answer 1

Respuesta:

a. 2-(5/15+6/15)=

2-(11/15)=

30/15-11/15=

19/15

b.(10/15-12/15)-(6/2-1/2)=

-2/15-5/2=

-4/30-75/30=

79/30

c.3/4:(6/15+25/15)=

3/4:31/15=

3×15/4×31=

55/124

d. (10/2+3/2) (8/4-1/4)=

(13/2)(7/4)=

13×7/2×4=

92/4=

23