Question

помогите пожалуйста!!!!!!!!!!!!!!!!!!!!!!!!!!​

Answer 1

$(1 \frac{3}{5} + 1 \frac{1}{2} ) \div 1 \frac{11}{20} = (1 \frac{6}{10} + 1 \frac{5}{10} ) \div 1 \frac{11}{20} = \\ \\ = 2 \frac{11}{10} \div 1 \frac{11}{20} = \frac{31 \times 20}{10 \times 31} = \frac{2}{1} = 2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$