Question

si acesta va rog mult!!!

Answer 1

$\frac{3}{4}$ +x = $\frac{7}{4}$
x= $\frac{7}{4}$ - $\frac{3}{4}$
x= 4/4 = 1

x+ $\frac{3}{10}$ = $\frac{10}{10}$
x= $\frac{10}{10} - \frac{3}{10} = \frac{7}{10}$

5/5 + x = 7/5
x=7/5-5/5
x= 2/5

6/8+x= 10/8
x=10/8-6/8
x=4/8
x=1/2