Question

срочно!!!!
дам 10 баллов
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Answer 1

1) х : 0,2 = 1 целая 1/3.

х = 1 целая 1/3 × 0,2

х = 4/15

2)а : 2/3 = 3/4

а = 3/4 × 2/3

а = 6/12

3)1 целая 1/4 - b = 1/2

b = 1 целая 1/4 + 1/2

b = 3/4

4)b × 5/7 = 1

b = 1 : 5/7

b = 1 ЦЕЛАЯ 2/5

Answer 2

Відповідь:

$x:0,2=1\frac{1}{3}\\x:\frac{2}{10} =\frac{4}{3} \\x=\frac{2}{10} *\frac{4}{3} \\\\x=\frac{4}{15}$

$a:\frac{2}{3}=\frac{3}{4} \\a=\frac{2}{3}*\frac{3}{4} \\\\a=\frac{1}{2}$

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

$b*\frac{5}{7}=1 \\b=\frac{7}{5}$