Question

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Answer 1

$a) frac{18 times 7 - 18 times 5}{24 times 7 + 24 times 5} = frac{18(7 - 5)}{24(7 + 5)} = frac{18 times 2}{24 times 12} = frac{6 times 6}{6 times 6 times 8} = frac{1}{8}$
$b) frac{28 times 2 + 28 times 6}{42 times 6 - 42 times 2} = frac{28(2 + 6)}{42(6 - 2)} = frac{28 times 8}{42 times 4} = frac{7 times 4 times 8}{7 times 6 times 4} = frac{4}{3} = 1 frac{1}{3}$