Question

Suma a doua numere este 5/6 iar diferenta este 1/6. Aflati numerele

Answer 1

$a+b=\frac{5}{6}$

$a-b=\frac{1}{6}$

$2a=\frac{5}{6}+\frac{1}{6}$

$2a=\frac{6}{6}$

$2a=1$

$a=\frac{1}{2}$

$b=\frac{5}{6}-\frac{1}{2}$

$b=\frac{5-3}{6}$

$b=\frac{2}{6}=\frac{1}{3}$

Answer 2

a+b=5/6
a=5/6-b
a-b=1/6
5/6-b-b=1/6
-b-b=1/6-5/6
-2b=-4/6 |:(-2)
b=4/12
a=5/6-b
a=5/6-4/12
a=10/12-4/12
a=6/12