Question

simplify -8÷7/9
ii) 4/9÷ -5/12
iii) -12/7 ÷ -18 ​

Answer 1

Answer:

i) −72/7

ii) 48/-35

iii) -12/-126

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Answer 2

(i)

$- 8 \div \frac{7}{9}$

$- 8 \times \frac{9}{7}$

$\frac{ - 72}{7}$

$= 10.28$

(ii)

$4/9÷ -5/12$

$\frac{4}{9} \times \frac{ - 12}{5}$

9 and 12 can be divided by 3

$\frac{4}{3} \times \frac{ - 4}{5}$

$= \frac{ - 16}{15}$

$=1.06$

(iii)

$-12/7 ÷ -18$

$\frac{ - 12}{7} \times \frac{ - 1}{18}$

$\frac{2}{7} \times \frac{1}{3}$

$= \frac{2}{21}$

$= 0.095$