Question

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( 5,6 - 1 1/3 ) : ( 7 7/12 - 2,25 ) • 2 1/4

Answer 1

$5 \frac{6}{10} - 1 \frac{1}{3} = 4 \frac{8}{30}$

$7 \frac{7}{12} - 2 \frac{25}{100} = 5 \frac{100}{300}$

$4 \frac{8}{30} \div 5 \frac{100}{300} = \frac{128}{30} \times \frac{1600}{300} = \frac{5120}{225}$

$\frac{5120}{225} \times 2\frac{1}{4} = \frac{5120}{225} \times \frac{9}{4} = \frac{1280}{25}$

$\frac{1280}{25} = \frac{256}{5}$

$\frac{256}{5} = 51 \frac{1}{5}$