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3 (a) Write $ \frac{3}{8} $ as a decimal - OCR - GCSE Maths - Question 3 - 2018 - Paper 1

Question 3

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3 (a) Write $ \frac{3}{8} $ as a decimal. (b) Write 42% as a fraction. Give your answer in its simplest form.

Worked Solution & Example Answer:3 (a) Write $ \frac{3}{8} $ as a decimal - OCR - GCSE Maths - Question 3 - 2018 - Paper 1

Step 1

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Answer

To convert the fraction ( \frac{3}{8} ) into a decimal, divide the numerator by the denominator:

3 \div 8 = 0.375

Thus, ( \frac{3}{8} ) as a decimal is ( 0.375 ).

Step 2

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Answer

To convert 42% to a fraction, start by writing it as ( \frac{42}{100} ). Now, simplify this fraction.

Both the numerator and denominator can be divided by 2:

\frac{42 \div 2}{100 \div 2} = \frac{21}{50}

Thus, the simplest form of 42% as a fraction is ( \frac{21}{50} ).

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