Question

Fie numerele: a= \frac{1}{2} + {3} " alt=" \frac{2}{3} " align="absmiddle" class="latex-formula">

Answer 1

(1/2)+(2/3)
make bottom number same to add because
$\frac{a}{y} + \frac{b}{y} = \frac{a+b}{y}$
remember that we don't want to change the numbers
when you mulitply by x/x where x=x, then that is the same number
example
1/2 times 2/2=2/4
so 1/2=2/4


ok

1/2 and 2/3
bottom number is 2 and 3
2 times 3=6

so make bottom number 6
what you multiply bottom number by, you also multiply top number

1/2
2 times 3=6
1/2 times 3/3=3/6

2/3
3 times 2=6
2/3 times 2/2=4/6

now we got
$\frac{3}{6} + \frac{4}{6} = \frac{3+4}{6} = \frac{7}{6}$=1 and 1/6