Question

(5 5/28-5 1/3*1.25-1 16/21):(-1.5)

Answer 1

6,43 ответ будет таковым

Answer 2

Let's break down the expression step by step:

1. Convert the mixed numbers to improper fractions:

   • 5 5/28 = (5 * 28 + 5) / 28 = 145 / 28
   • 5 1/3 = (5 * 3 + 1) / 3 = 16 / 3
   • 1 16/21 = (1 * 21 + 16) / 21 = 37 / 21

2. Perform the multiplications and subtractions inside the parentheses:

   • (145 / 28) - (5/3 * 1.25) - (37 / 21) = (145 / 28) - (15/12 * 5/4) - (37 / 21)
   • (145 / 28) - (75 / 48) - (37 / 21)

3. Find a common denominator for the fractions in the expression:

   • The common denominator for 28, 48, and 21 is 168.

4. Convert all fractions to have a common denominator of 168:

   • (145 * 6) / 168 - (75 * 7) / 168 - (37 * 8) / 168
   • 870 / 168 - 525 / 168 - 296 / 168

5. Perform the subtractions:

   • (870 - 525 - 296) / 168
   • 49 / 168

6. Finally, divide the result by -1.5:

   • (49 / 168) / -1.5
   • (49 / 168) * (-2/3)
   • (49 * -2) / (168 * 3)
   • -98 / 504
   • -49 / 252

So, the result of the expression is -49/252.