Răspuns :
a+b= 10 intreg 2/5
a-b=22/5
10intreg2/5= (5x10+2)/5 = 52/5
a+b =52/5
a-b = 22/5
adunam cele doua relatii
a+b+a-b = 52/5 + 22/5
2a=74/5
a= 74/5 :2
a=74/5 x 1/2
a=37/5
37/5 +b = 52/5
b= 52/5- 37/5
b=15/5
b=3
V: 37/5 +3 = 37/5 + 15/5= 52/5
a-b=22/5
10intreg2/5= (5x10+2)/5 = 52/5
a+b =52/5
a-b = 22/5
adunam cele doua relatii
a+b+a-b = 52/5 + 22/5
2a=74/5
a= 74/5 :2
a=74/5 x 1/2
a=37/5
37/5 +b = 52/5
b= 52/5- 37/5
b=15/5
b=3
V: 37/5 +3 = 37/5 + 15/5= 52/5