CPM Homework Help : CC2MN Problem 2-127

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2-127.

Simplify each expression.

$\frac{2}{3}(0.8)$
Hint (a):
Multiply and reduce.
Notice that $0.8$ can be converted into a fraction.
More Help (a):
$\left(\frac{2}{3}\right)\left(\frac{8}{10}\right)$
Answer (a):
$\frac{8}{15}$

$\frac{4}{3}\cdot\frac{3}{7}$
Hint (b):
Multiply and reduce.
Notice that since the two fractions are being multiplied the $3$ in the numerator and the $3$ in the denominator make a Giant One.
More Help (b):
$\left(\frac{4}{1}\right)\left(\frac{1}{7}\right)$

$-\frac{5}{6}\cdot\frac{4}{7}$
Hint (c):
Multiply and reduce.

$-\frac{4}{5}\cdot\left(1\frac{1}{3}\right)$
Hint (d):
Multiply and reduce.
Converting the second fraction into a fraction greater than one may prove to be more helpful.
Answer (d):
$-1\frac{1}{15}$

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