Question

помогите пж!!.........​

Answer 1

а)

$(6\frac{1}{15}+1\frac{8}{15})-(8-4\frac{2}{15})= (\frac{91}{15}+\frac{23}{15})-(\frac{8}{1} -\frac{62}{15})= (\frac{91}{15}+\frac{23}{15})-(\frac{120}{15} -\frac{62}{15})=\\\\= \frac{114}{15}- \frac{58}{15}=\frac{56}{15}= 3 \frac{11}{15}$

б)

$5\frac{2}{9}-(3\frac{1}{9}-2\frac{4}{9})+\frac{5}{9}= \frac{47}{9}-(\frac{28}{9}-\frac{22}{9})+\frac{5}{9}=\frac{47}{9}-\frac{6}{9}+\frac{5}{9}=\frac{41}{9}-\frac{5}{9}=\frac{36}{9}=4$