Question

opera
a)9(1/7+7/8:4/6)-1/3


b)1/5+7/8:4/6-1/3 porfa responder si la veis please

Answer 1

Respuesta:

Explicación paso a paso:

a)

9(1/7+7/8:4/6)-1/3

9(1/7+7/8:2/3)-1/3

9(1/7+21/16)-1/3

9((16+147)/112)-1/3

9*163/112-1/3

1467/112-1/3

(1467-56)/112=1411/112

b)

1/5+7/8:4/6-1/3

1/5+7/8:2/3-1/3

1/5+21/16-1/3

(48+315-80)/240=283/240

Answer 2

Respuesta:

a)9×(1/7+7×4|8×6)-13=

9×(1/7+28/48)-13=

m.c.m(7 y 48)=336

7=7

48=2×2×2×2×3

7×2×2×2×2×3=336

9×(48/336+196/336)-13=

9×224/336-13=

2016/336-13=

2016/336-4368/336=-2352/336

b)1/5+7/8÷4/6-1/3=

1/5+7×4|8×6-1/3=

1/5+28/48-1/3

m.c.m(5,48 y 3)=240

5=5

48=2×2×2×2×3

3=3

5×2×2×2×2×3=240

48/240+140/240-80/240=180/240