Question

a)1/5+(-2/5) b)-3/7+(10/7) c)7/6+(-5/6) d)1/5+(-3/5)+6/5 e)3/5-(-2/5) f)13/7-(-10/7) g)4/8-(+5/8) h)23/6-(+7/6)-(-5/6) pfv me ajudem ​

Answer 1

Resposta:

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

1/5 - 2/5 =

- 1/5 =

- 0,2

b) -3/7+(10/7)

7/7 =

1

c) 7/6+(-5/6)

7/6 - 5/6 =

2/6 =

1/3 =

0,33...

d) 1/5+(-3/5)+6/5

1/5 - 3/5 + 6/5 =

-2/5 + 6/5 =

4/5 =

0,8

e) 3/5-(-2/5)

3/5 + 2/5 =

5/5 =

1

f) 13/7-(-10/7)

13/7 + 10/7 =

23/7 =

3,28

g) 4/8-(+5/8)

4/8 - 5/8 =

- 1/8 =

- 0,125

h) 23/6-(+7/6)-(-5/6)

23/6 - 7/6 + 5/6 =

16/6 + 5/6 =

21/6 =

3,5