Question

Вычислите:
№833
а) 1/10 + 7/100

б) 21/100 + 1/10

в) 3/5 + 9/10

г) 2/3 + 5/6

№835

а) 1/6 + 1/9

б) 2/9 + 5/6

в) 2/9 + 3/8

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

883.
а)
$frac{1}{10} + frac{7}{100} = frac{1}{10} times frac{10}{10} + frac{7}{100} = frac{1 times 10}{100} + frac{7}{100} = frac{10 + 7}{100} = frac{17}{100} = 0.17$
б)
$frac{21}{100} + frac{1}{10} = frac{21}{100 } + frac{1}{10} times frac{1}{10} = frac{21}{100} + frac{1 times 10}{100} = frac{21 + 10}{100} = frac{31}{100} = 0.31$
в)
$frac{3}{5} + frac{9}{10} = frac{3}{5} times frac{2}{2} + frac{9}{10} = frac{3 times 2}{10} + frac{9}{10} = frac{3 times 2 + 9}{10} = frac{15}{10} = frac{3}{2} = 1.5$
г)
$frac{2}{3 } + frac{5}{6} = frac{2}{3} times frac{2}{2} + frac{5}{6} = frac{2 times 2}{6} + frac{5}{6} = frac{2 times 2 + 5}{6} = frac{9}{6} = frac{3}{2} = 1.5$

Answer 3

835. а)1/6+1/9=1/6×3/3+1/9×2/2=1×3/18+1×2/18=1×3+1×2/18=5/18=0,27