Question

8/15-3/22 2)11)12-19/30 3)6/25-2/45 4)7/8-5/24​

Answer 1

я ділення зробила в віді дробів

Answer 2

To perform these subtractions, you need to have a common denominator for each pair of fractions. Let's work through each of the subtractions:

1. $\frac{8}{15} - \frac{3}{22}$

To find a common denominator, you can multiply 15 and 22, which is 330. Now, convert both fractions to have a denominator of 330:

$\frac{8}{15} \times \frac{22}{22} = \frac{176}{330}$

$\frac{3}{22} \times \frac{15}{15} = \frac{45}{330}$

Now, you can subtract the fractions:

$\frac{176}{330} - \frac{45}{330} = \frac{176 - 45}{330} = \frac{131}{330}$

2. $\frac{11}{12} - \frac{19}{30}$

To find a common denominator, you can multiply 12 and 30, which is 360. Now, convert both fractions to have a denominator of 360:

$\frac{11}{12} \times \frac{30}{30} = \frac{330}{360}$

$\frac{19}{30} \times \frac{12}{12} = \frac{228}{360}$

Now, you can subtract the fractions:

$\frac{330}{360} - \frac{228}{360} = \frac{330 - 228}{360} = \frac{102}{360}$

To simplify this fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 6:

$\frac{102/6}{360/6} = \frac{17}{60}$

3. $\frac{6}{25} - \frac{2}{45}$

To find a common denominator, you can multiply 25 and 45, which is 1125. Now, convert both fractions to have a denominator of 1125:

$\frac{6}{25} \times \frac{45}{45} = \frac{270}{1125}$

$\frac{2}{45} \times \frac{25}{25} = \frac{50}{1125}$

Now, you can subtract the fractions:

$\frac{270}{1125} - \frac{50}{1125} = \frac{270 - 50}{1125} = \frac{220}{1125}$

To simplify this fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 5:

$\frac{220/5}{1125/5} = \frac{44}{225}$

4. $\frac{7}{8} - \frac{5}{24}$

To find a common denominator, you can multiply 8 and 24, which is 192. Now, convert both fractions to have a denominator of 192:

$\frac{7}{8} \times \frac{24}{24} = \frac{168}{192}$

$\frac{5}{24} \times \frac{8/8} = \frac{40}{192}$

Now, you can subtract the fractions:

$\frac{168}{192} - \frac{40}{192} = \frac{168 - 40}{192} = \frac{128}{192}$