Question

7/8-1/2 =. 25 /9 • 3/5

Answer 1

Ответ:

$\frac{7}{8} - \frac{1}{2} = \frac{7}{8} - \frac{4}{8} = \frac{3}{8}$

$\frac{25}{9} \times \frac{3}{5} = \frac{25 \times 3}{9 \times 5} = \frac{5}{3} = 1 \frac{2}{3}$

Answer 2

Ответ:

7/8-1/2=14/16-7/16=7/16

25/9*3/5 =5/3

Answer 3

Let's calculate the given expressions step-by-step:

1. 7/8 - 1/2: To subtract fractions, we need to have a common denominator. The common denominator here is 8. So, we convert both fractions:

(7/8) - (1/2) = (7/8) - (4/8) = (7 - 4)/8 = 3/8

Therefore, 7/8 - 1/2 = 3/8.

2. 25/9 * 3/5: To multiply fractions, we simply multiply the numerators together and the denominators together:

(25/9) * (3/5) = (25 * 3) / (9 * 5) = 75 / 45

Now, we can simplify this fraction by finding the greatest common divisor (GCD) of 75 and 45, which is 15:

(75 / 45) = (75 ÷ 15) / (45 ÷ 15) = 5/3

Therefore, 25/9 * 3/5 = 5/3.

So, the final results are:

1. 7/8 - 1/2 = 3/8
2. 25/9 * 3/5 = 5/3