Question

Dau 50 puncte ! + coroana
Calculati:
a) 23 grade 15 minute + 15 grade 45 minute =
b) 12 grade 48 minute + 13 grade 52 minute=

Multumesc mult !!!!!!

Answer 1

a) 23* 15'+15*45'= 38* 60'=39*
b)12* 48'+13* 52'=25* 100'=26* 40'

Answer 2

aduni gradele cu gradele si minutele cu minutele. daca suma minutelor depaseste 60 , atunci se transforma intr - un grad

a) 23 + 15 = 38 de grade
    15  + 45 = 60 minute = 1 grad
    =>  23 grade 15 minute + 15 grade 45 minute = 39 de grade

b)  12 + 13 = 25 de grade
      48 + 52 = 100 minute = 1 grad si 40 minute
     12 grade 48 minute + 13 grade 52 minute= 26 grade si 40 de minute