Question

Помогите решить!
1). (1 3/11+2 1/11)+3 6/11=
2). 5 16:21-(2 7/21+2 10/21)=

Answer 1

1) = 3 4/11 + 3 6/11 = 6 10/11
2) 5 16/21 - 4 17/21 = 4 37/21 - 4 17/21 = 20/21

Answer 2

1.$(1 frac{3}{11}+2 frac{1}{11})+3 frac{6}{11}= ( frac{14}{11} +frac{23}{11})+ frac{39}{11} =frac{37}{11} +frac{39}{11} =frac{76}{11} =6frac{10}{11}$
2.$5 frac{16}{21} -(2frac{7}{21}+2 frac{10}{21})= frac{121}{21} -(frac{49}{21}+frac{52}{21} )= frac{121}{21} -frac{101}{21}=frac{20}{21}$