Question

a)2/5+1/6=

b)3/8+2/5-2/9=

c)3/8-1/4=

d)5/11=3/8-(4/9+1/3)=

e)4/5+1/8+1/10=

Answer 1

Resposta:  

Explicação passo-a-passo:

a)2/5+1/6=   ($\frac{17}{30}$)

b)3/8+2/5-2/9= (0.55277777777)

c)3/8-1/4= (0.125)

d)5/11=3/8-(4/9+1/3)=

SOMAS DE FRAÇÕES :

5/11 + 3/8 - 4/9 + 1/3

TIRANDO O MMC ENTRE 11 , 8 , 9  e 3

11, 8 , 9, 3   | 2

11, 4, 9,3     | 2

11, 2, 9, 3    |2

11, 1, 9, 3     |3

11, 1, 3, 1      |3

11, 1, 1, 1       |11

1, 1, 1, 1        |1

_________| 2  x 2 x 2 x 3 x 3 x 11 = 792 > mmc

5/11 + 3/8 - 4/9 - 1/3   = > 792/11 x 5 + 792/8 x 3 - 792/9 x 4 - 792/3 x 1  / 792

                                 = > 360 +  297 -  352 - 264  / 792

                                  = >   (41 / 792)

e)4/5+1/8+1/10= (1.025)