Question

Help Number 13 show your work

Answer 1

One fourth if you divide it by fourths you can easily see your line. (1/4) Or you could find the LCD then add them and then find the number that would make it whole

FINAL ANSWER (1/4) OR ONE FOURTH!

Answer 2

$\frac{2}{3} + \frac{1}{10} \\ = ( \frac{2 \times 10}{3 \times 10} ) + ( \frac{1 \times 3}{10 \times 3} ) \\ = \frac{20}{30} + \frac{3}{30} \\ = \frac{23}{30}$
Let whole circle = 10/10
$\frac{10}{10} - \frac{23}{30} \\ = \frac{10 \times 3}{10 \times 3} - \frac{23}{30} \\ = \frac{30}{30} - \frac{23}{30} \\ = \frac{7}{30}$
The green area is 7/30