Question

1) 5/14 + 2/7 = 2)0,5-2/7= 3)5/8+5/16-5/24= СРОЧНОООО!!!!

Answer 1

Ответ:

Пошаговое объяснение:

1) 5/14 + 2/7 =5/14 + 4/14 = 9/14;

2)0,5-2/7= 5/10 - 2/7 = 1/2 - 2/7 = 7/14-4/14 = 3/14;

3)5/8+5/16-5/24=> НОК(8;16;24)=48 => 30/48+15/48-10/48=35/48.

Answer 2

Ответ:

1)$=\frac{5}{14} +\frac{4}{14}=\frac{5+4}{14} =\frac{9}{14}$

2)$=\frac{5}{10}-\frac{2}{7} =\frac{1}{2} -\frac{2}{7}=\frac{7}{14} -\frac{4}{14} =\frac{7-4}{14} =\frac{3}{14}$

3)$=\frac{10}{16} +\frac{5}{16} -\frac{5}{24} =\frac{10+5}{16} -\frac{5}{24} =\frac{15}{16} -\frac{5}{24} =\frac{45}{48} -\frac{10}{48} =\frac{45-10}{48} =\frac{35}{48}$

Answer 3

1. To add fractions, we need to find a common denominator. In this case, the common denominator is 14 because both 14 and 7 can divide evenly into it. So, we can rewrite the fractions with the common denominator:

5/14 + 2/7 = (5/14) + (4/14) = (5 + 4)/14 = 9/14

Therefore, 5/14 + 2/7 = 9/14.

2. To subtract fractions, we also need a common denominator. In this case, the common denominator is 2 because both fractions have a denominator of 2. So, we can rewrite the fractions with the common denominator:

0.5 - 2/7 = (0.5 * 7/7) - (2/7) = 3.5/7 - 2/7 = (3.5 - 2)/7 = 1.5/7

Therefore, 0.5 - 2/7 = 1.5/7.

3. To add or subtract fractions with different denominators, we need to find a common denominator. In this case, the least common denominator (LCD) is 24 because it is the smallest number that 8, 16, and 24 can all divide evenly into. So, we can rewrite the fractions with the common denominator:

5/8 + 5/16 - 5/24 = (15/24) + (15/24) - (10/24) = (15 + 15 - 10)/24 = 20/24

To simplify the fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 4:

20/24 = (20/4) / (24/4) = 5/6

Therefore, 5/8 + 5/16 - 5/24 = 5/6.

Please note that these calculations have been performed using standard fraction arithmetic.