Question

which number will make the fractions equivalent 25/35

Answer 1

You could make an equivalent fraction by multiplying both numbers by 2.

$25*2=50\\35*2=70\\ \\ \frac{50}{70}$

Answer 2

$\frac{25}{35} = \frac{25:5}{35:5} = \frac{5}{7} \\ \\ \frac{25}{35} =\frac{25\cdot2}{35\cdot2}= \frac{50}{70} \\ \\ \frac{25}{35} = \frac{25\cdot4}{35\cdot4} = \frac{100}{140}\\ \\ \frac{25}{35} = \frac{25\cdot10}{35\cdot10} = \frac{250}{350}$