Question

help me with this question​

Answer 1

Step-by-step explanation:

(i)

$\frac{5}{7} - \frac{5}{7} = 0$

(ii)

$\frac{ - 55}{12} - ( \frac{ - 33}{9} ) \\ = \frac{ - 55}{12} + \frac{33}{9} \\ = \frac{ (- 55 \times 3) + (33 \times 4)}{36} \\ = \frac{ - 165 + 132}{36} \\ = \frac{ - 33}{36} \\ = \frac{ - 11}{12}$

Answer 2

Answer:

( i )-2. ( iv ) -42

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-2. -67