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Work out the following, giving your answers in their simplest form.

a) [tex]\(\frac{4}{7} \div 1 \frac{3}{4}\)[/tex]


Sagot :

To solve the division of the fractions [tex]\(\frac{4}{7} \div 1 \frac{3}{4}\)[/tex], we can follow these steps:

1. Convert the mixed number to an improper fraction:

The mixed number [tex]\(1 \frac{3}{4}\)[/tex] can be converted to an improper fraction.

[tex]\[ 1 \frac{3}{4} = \frac{1 \cdot 4 + 3}{4} = \frac{4 + 3}{4} = \frac{7}{4} \][/tex]

2. Recall that dividing by a fraction is the same as multiplying by its reciprocal:

So, [tex]\(\frac{4}{7} \div \frac{7}{4}\)[/tex] becomes [tex]\(\frac{4}{7} \times \frac{4}{7}\)[/tex].

3. Multiply the fractions:

To multiply two fractions, multiply their numerators and multiply their denominators:

[tex]\[ \frac{4}{7} \times \frac{4}{7} = \frac{4 \cdot 4}{7 \cdot 7} = \frac{16}{49} \][/tex]

4. Simplify the fraction if possible:

Here, [tex]\(\frac{16}{49}\)[/tex] is already in its simplest form since 16 and 49 have no common factors other than 1.

Thus, the final simplified answer is [tex]\(\frac{16}{49}\)[/tex].