What is 60 out of 70 as a percentage?

This is how I personally prefer to answer percentage wise problems ...

35 = 50% or 1/2 of 70

7 = 10% or 1/10 of 70

If you were to add the two percentages you'd have a sum of 60% ...

And vice versa if you were to the corresponding numbers you'd have "42"

Therefore your answer would be ...

42 or 60%

60 divided by 70 and multiplied by 100 to get your answer