Question

please ans step by step with explaination​

Answer 1

$\large\underline\mathfrak\red{Question \: :- }$

| -5/4 7/2 |

| 9/7 -16/9|

$\large\underline\mathfrak\red{Answer \: :- }$

Steps :-

• Cross multiplication.
• Subtract the product of cross multiply.

Required

$\sf\implies{ (\frac{ -5 }{4} \times \frac{ - 16}{9}) - ( \frac{9}{7} \times \frac{7}{2} ) } \\ \sf\implies{ \frac{80}{36} - \frac{63}{14} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf\implies{ \frac{20}{9} - \frac{9}{2} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\\sf\implies{ \frac{(20 \times 2) - (9 \times 9)}{9 \times 2} } \: \: \: \: \: \: \: \: \: \: \\ \sf\implies{ \frac{40 - 81}{18} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\bf\implies\pink{ \frac{ - 41}{18} }$

Answer : -41/18

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