Question

1) (1, 56-1, 24) * (1 /5/14) 2) (4 5/9-3 /7/12) : (-1 8/27)

Answer 1

$1)(1.56 - 1.24) \times (1 \frac{5}{14} ) = \frac{32 \times 15}{100 \times 14} = \frac{4 \times 3}{5 \times 7 } = \frac{12}{35}$

$2)(4 \frac{5}{9} - 3 \frac{7}{12} ) \div ( - 1 \frac{8}{27} ) = (3\frac{56}{36} - 3 \frac{21}{36} ) \div ( - \frac{35}{27} ) = - \frac{35 \times 27}{36 \times 35} = - \frac{3}{4} = - 0.75$