Question

1)-0,25 -3 1/2
2)-9 1/4 -0,75

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Answer 1

$-0,25 - 3\frac{1}{2} = -\frac{25}{100} - 3 \frac{1}{2} = -3 - \frac{25}{100} - \frac{1}{2} = -3 - \frac{25}{100} - \frac{50}{100} = -3 - \frac{25+50}{100} = 3 - \frac{75}{100} = -3 - (-\frac{3}{4} )= -3 \frac{3}{4} = -3,75$

$-9\frac{1}{4} - 0,75 = -9\frac{1}{4} - \frac{75}{100} = -9 - \frac{25}{100} - \frac{75}{100}= -9 - \frac{100}{100} = -9 - 1 = -10$