Question

if 4 is added to the numerator of the fraction 2/5, what number must be added to the denominator to make the fraction equivalent to 1/2?​

Answer 1

Answer:

7

Step-by-step explanation:

Let X be the number...

2+4/5+X=1/2

6/5+X=1/2

12=5+X

X=7

Answer 2

Answer:

7

Step-by-step explanation:

By adding 4 to the numerator 2, we get 6 / 5.

Since 1 / 2 = 0.5, we need to find a number that we can divide 6 by to get 0.5.

Since 0.5 is half of a unit, we just need to find a number which it's half is 6.

6 * 2 = 12 (meaning 6 is half of 12), so 6 / 12 = 0.5  meaning 6 / 12 it's equivalent to 1 / 2.

12 - 5 = 7, so we need to add seven to the denominator to make the fractions equivalent.

( English is not my first language so sorry if I understood the question wrong, but I'm pretty sure that's it )