Question

11/15-1 9/10+5/8 0.9+0.1 решите пожалуйста

Answer 1

$frac{11}{15} -1= frac{11-15}{15} = -frac{4}{15}$
$frac{9}{10}+ frac{5}{8} = frac{72+50}{80} = frac{122}{80}= frac{61}{40} =1 frac{21}{40}$
$0.9+0.1= frac{9+1}{10} = frac{10}{10} = 1$

Answer 2

$frac{11}{15} -1= frac{11-15}{15} = -frac{4}{15}$

Answer 3

$frac{11}{15} -1= frac{11-15}{15} = - frac{4}{15}$

Answer 4

Нечестно