Question

помогите пожалуйста!!!

Answer 1

$\displaystyle \tt 14-13,2:\bigg(3\frac{11}{21}-2\frac{4}{15}\bigg)=3,5\\\\\\\\1). \ 3\frac{11}{21}-2\frac{4}{15}=3\frac{110}{210}-2\frac{56}{210}=1\frac{54}{210}=1\frac{9}{35}\\\\2). \ 13,2:1\frac{9}{35}=\frac{132}{10}\cdot\frac{35}{44}=\frac{105}{10}=10,5\\\\3). \ 14-10,5=3,5$

Answer 2

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