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

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

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

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