Question

Va rog repede dau coroana la primul!! ​

Answer 1

Răspuns:

10)a)

$\frac{1}{2} - \frac{1}{3} = \frac{1}{6}$

$\frac{1}{2} - \frac{1}{6} = \frac{1}{3}$

$\frac{1}{3} - \frac{1}{6} = \frac{1}{6}$

$\frac{1}{2} - ( \frac{1}{3} + \frac{1}{6} ) = 0$

b)

$1 \frac{1}{5} - \frac{3}{4} = \frac{9}{20}$

$1 \frac{1}{5} - \frac{1}{5} = 1$

$\frac{3}{4} - \frac{1}{5} = \frac{11}{20}$

$1 \frac{1}{5} - ( \frac{3}{4} + \frac{1}{5} ) = \frac{1}{4}$

c)

$7 {1}^{2} - 3 \frac{1}{4} = 4 \frac{1}{4}$

$7 \frac{1}{2} - 1 \frac{2}{5} = 6 \frac{1}{10}$

$3 \frac{1}{4} - 1 \frac{2}{5} = \frac{37}{20}$

$7 \frac{1}{2} - (3 \frac{1}{4} + 1 \frac{2}{5} ) = \frac{57}{20}$

d)

$2 \frac{3}{10} - 1 \frac{2}{10}$

$2 \frac{3}{10} - \frac{2}{5} = \frac{19}{10}$

$1 \frac{2}{5} - \frac{2}{5} = 1$

$2 \frac{3}{10} - (1 \frac{2}{5} + \frac{2}{5} ) = \frac{1}{2}$

e)

$3 \frac{3}{8} - 2 \frac{1}{10} = 1 \frac{11}{40}$

$3 \frac{3}{8} - 1 \frac{1}{4} = 2 \frac{1}{8}$

$2 \frac{1}{10} - 1 \frac{1}{4} = \frac{17}{20}$

$3 \frac{3}{8} - (2 \frac{1}{10} + 1 \frac{1}{4} ) = \frac{1}{40}$

f)

$4 \frac{9}{10} - 2 \frac{4}{5 } = 2 \frac{1}{10}$

$4 \frac{9}{10} - 1 \frac{1}{2} = 3 \frac{2}{5}$

$2 \frac{4}{5} - 1 \frac{1}{2} = 1 \frac{3}{10}$

$4 \frac{9}{10} - (2 \frac{4}{5} + 1 \frac{1}{2} ) = \frac{3}{5}$