Question

Resolva as operações
+ a) 4 h 20' 30' + 5h 40' 31⁴ =

+ b) 7 h 23' +3h 37' =

+ c) 20 h 30' 23" + 2h 30' 37" =

+ d) 4 h - 3 h 20' =

+ f) 7 h 30' 20" - 6 h 20' 19" =

+ g) 10 h 30" - 5 h 10' 30" =

me ajudem por favor


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Answer 1

Resposta:

Explicação passo a passo:

a)

4 h 20' 30" + 5h 40' 31"

4h + 5h = 9h

20' + 40' = 60' = 1h

30" + 31" = 61" = 60" 1" = 1' 1"

= 9h + 1h + 1' 1"

R.: = 10h 1' 1"

_____________

b) 7 h 23' + 3h 37' =

7h + 3h = 10h

23' + 37' = 60' = 1h

= 10h + 1h

R.: = 11h

__________

c) 20 h 30' 23" + 2h 30' 37" =

20h + 2h = 22h

30' + 30' = 60' = 1h

23" + 37" = 60" = 1'

= 22h + 1h 1'

R.: = 23h 1'

______

d) 4 h - 3 h 20' =

= 3h 60' - 3h 20'

3h - 3h = 0h

60' - 20' = 40 '

R.: = 40'

__________

f) 7 h 30' 20" - 6 h 20' 19"

7h - 6h = 1h

30' - 20' = 10'

20" - 19" = 1"

R.: = 1h 10' 1"

___________

g) 10 h 30" - 5 h 10' 30"

= 9h 60 ' 30" - 5h 10' 30"

9h - 5h = 4h

60' - 10' = 50'

30" - 30" = 0"

R.:= 4h 50'