Question

помогите пожалуйста!!!

Answer 1

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

Answer 2

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