Question

1) 4 5/17 - 6 =
2) 1 3/8 - 3 1/4 =
3) -2 14/15 - 1 19/45 =
4) -3 1/6 - (-1 1/4) =

Answer 1

Ответ:

1) $4\frac{5}{17} - 6 = -(6 - 4\frac5{17}) = - 1\frac{12}{17}$

2) $1 \frac38 - 3 \frac14 = -(3\frac28 - 1\frac38) = -1\frac{7}{8}$

3) $-2\frac{14}{15} - 1\frac{19}{45} = -(2\frac{42}{45} + 1\frac{19}{45}) = -(3\frac{42+19}{45}) = -4\frac{16}{45}$

4) $-3\frac16 - (-1\frac14) = -3\frac16 + 1\frac14 = -(3\frac{1}{6} - 1\frac{1}{4}) = - (3\frac{2}{12} - 1\frac{3}{12}) = -1\frac{11}{12}$