What is expand (4 2/7)21 ?

The solution to expand (4 2/7)21 is 90

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expand (4 2/7)21

expand

(4 \frac{2}{7}) 21

90

Solution steps

(4 \frac{2}{7}) 21

Convert mixed numbers to improper fractions:

4 \frac{2}{7} = \frac{30}{7}

= (\frac{30}{7}) 21

Remove parentheses:

(a) = a

= \frac{30}{7} \cdot 21

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{30 \cdot 21}{7}

Multiply the numbers:

30 \cdot 21 = 630

= \frac{630}{7}

Divide the numbers:

\frac{630}{7} = 90

= 90

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