Answer:
It's also 70.
Step-by-step explanation:
You are trying to fill in the blank with a number that would make both fractions equivalent. So you can see that the the denominators are 7 and 70. Basically just take 70 divided 7 which is 10. So now you know that both numerator and denominator are multiplied by 10 so 70 is what you fill in to the blank.
