How do you simplify $\frac{\frac{4}{5} + \frac{2}{4}}{20}$ $(4/5 + 2/4)/20$ ?

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Answer 1 · 2017-11-11T05:58:16

Find LCD on top and add the fractions.
Flip division into multiplication.
$\frac{13}{200}$ $13/200$

$\frac{\frac{4}{5} + \frac{2}{4}}{20}$ $(4/5 + 2/4)/20$

work the numerator by finding a common LCD so we can make it one term
$\frac{4}{5} + \frac{2}{4} = \frac{4}{5} + \frac{1}{2}$ $4/5 + 2/4 = 4/5 + 1/2$

$\frac{4}{5} + \frac{1}{2}$ $4/5 + 1/2" "$ LCD is $10 = 5 \cdot 2$ $10 = 5*2$

$\frac{\frac{4 \cdot 2}{5 \cdot 2} + \frac{1 \cdot 5}{2 \cdot 5}}{20}$ $((4*2)/(5*2) + (1*5)/(2*5))/20$

$\frac{8}{10} + \frac{5}{10} = \frac{13}{10}$ $8/10 + 5/10 = 13/10$

$\frac{\frac{13}{10}}{20}$ $(13/10)/20$ which means $\frac{13}{10} \div 20$ $13/10 div 20$

inverse of division is multiplication

inverse of 20 is $\frac{1}{20}$ $1/20$ because $\frac{20}{1} \cdot \frac{1}{20} = 1$ $20/1 * 1/20 = 1$

$\frac{13}{10} \cdot \frac{1}{20}$ $13/10 * 1/20$

$= \frac{13}{200}$ $= 13/200$

How do you simplify45+2420(4/5 + 2/4)/20?