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Calculate the following expression:

[tex]\[ 237 \frac{27}{16} \div \left(-\frac{3}{8}\right) \][/tex]


Sagot :

To solve the expression [tex]\(237 \frac{27}{16} \div\left(-\frac{3}{8}\right)\)[/tex], follow these steps:

1. Convert the mixed number to an improper fraction:
The given mixed number is [tex]\(237 \frac{27}{16}\)[/tex]. First, convert this to an improper fraction.
To do so, multiply the whole number part by the denominator of the fraction part and add the numerator:
[tex]\[ 237 \times 16 + 27 = 3792 + 27 = 3819 \][/tex]
Thus, the improper fraction is:
[tex]\[ \frac{3819}{16} \][/tex]

2. Identify the divisor and convert it properly:
The divisor is [tex]\(-\frac{3}{8}\)[/tex].

3. Rewrite the division as the multiplication by the reciprocal of the divisor:
Dividing by a fraction is the same as multiplying by its reciprocal. Therefore, we rewrite the division:
[tex]\[ \frac{3819}{16} \div \left(-\frac{3}{8}\right) = \frac{3819}{16} \times \left(-\frac{8}{3}\right) \][/tex]

4. Multiply the fractions:
When multiplying fractions, multiply the numerators together and the denominators together:
[tex]\[ \frac{3819}{16} \times \left(-\frac{8}{3}\right) = \frac{3819 \times (-8)}{16 \times 3} = \frac{-30552}{48} \][/tex]

5. Simplify the fraction if possible:
To simplify [tex]\(\frac{-30552}{48}\)[/tex], divide both the numerator and the denominator by their greatest common divisor (GCD). The GCD of [tex]\(30552\)[/tex] and [tex]\(48\)[/tex] is [tex]\(48\)[/tex]:
[tex]\[ \frac{-30552 \div 48}{48 \div 48} = \frac{-636.5}{1} = -636.5 \][/tex]

Hence, the final result of the expression [tex]\(237 \frac{27}{16} \div \left(-\frac{3}{8}\right)\)[/tex] is [tex]\(-636.5\)[/tex].