Answer:
42.9%
Explanation:
To find the percentage corresponding to a fraction, multiply it by 100%.
30/70 × 100% ≈ 42.9%
30 is about 42.9% of 70.
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Additional comments
The fraction 3/7 has a repeating decimal equivalent:
3/7 = 0.428571...(6-digit repeat)
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You can write your question as an equation:
what% × 70 = 30
Solve it by dividing by 70:
what% = 30/70
The answer will be the fraction written as a percentage, as shown above.