Question

Calculeaza in doua moduri : 3 intregi 2/5 + 2 intregi 4/5 b) 5 intregi 3/7 - 2intregi 6/7. dau coroana

Answer 1

Răspuns

Explicație pas cu pas:

3 intregi 2/5 + 2 intregi 4/5 = 17/5 + 14/5 = 31/5 = 6 si 1/5

sau

2/5 + 4/5 = 6/5 = 1 si 1/5

3 + 2 = 5

5 + 1 si 1/5 = 6 si 1/5

____________

5 intregi 3/7 - 2intregi 6/7 = 38/7 - 20/7 = 18/7 = 2 si 4/7

5 si 3/7 = 4 si 10/7

4 - 2 = 2

10/7 - 6/7 = 4/7

resultat 2 + 4/7 = 2 si 4/7