Question 51
What is the value of $$\frac{84 \div 12 \times 3 - 4 \div 12 \times 9 + 5 \times 6 - 2 \times 3}{8 \div 12 \times 3}$$ ?
Solution
= $$\frac{84 \div 12 \times 3 - 4 \div 12 \times 9 + 5 \times 6 - 2 \times 3}{8 \div 12 \times 3}$$
= $$\frac{\frac{84}{12}\times3-\frac{4}{12}\times9+5\times6-2\times3}{\frac{8}{12}\times3}$$
= $$\frac{21-3+30-6}{2}$$
= $$\frac{18+24}{2}$$
= $$\frac{42}{2}$$
= 21
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