Question

Помогите решить пример по действиям пожалуйста СРОЧНО

Answer 1

$(1)8 \frac{7}{12} - 2 \frac{17}{36} = \\ = (8 - 2) + ( \frac{7}{12} - \frac{17}{36} ) = \\ = 6 + \frac{21 - 17}{36} = 6 + \frac{4}{36} = 6 \frac{1}{9}$
$(2)6 \frac{1}{9} \times 2.7 = \frac{37}{9} \times \frac{27}{10} = \\ = \frac{37 \times 3}{10} = \frac{111}{10}$
$(3)4 \frac{1}{3} \div 0.65 = \frac{13}{3} \times \frac{100}{65} = \\ = \frac{100}{3 \times 5} = \frac{20}{3}$


$(4) \frac{111}{10 } - \frac{20}{3} = \frac{333 - 200}{30} = \\ = \frac{133}{30} = 4 \frac{13}{30}$

$(8 \frac{7}{12} - 2 \frac{17}{36} ) \times 2.7 - 4 \frac{1}{3} \div 0.65 = \\ = 4 \frac{13}{30}$