Question

( 6 целых - 2 целых 1/10 * 2 целых 1/7) * 4/15 =

Answer 1

Надеюсь,что помогла)

Answer 2

Let's simplify this expression step by step using the order of operations (PEMDAS):

1. First, we need to simplify the expression inside the parentheses:

   2 целых 1/10 * 2 целых 1/7

   To multiply these fractions, we need to convert them to improper fractions:

   2 целых 1/10 = (2 * 10 + 1)/10 = 21/10

   2 целых 1/7 = (2 * 7 + 1)/7 = 15/7

   Now we can multiply them:

   (21/10) * (15/7) = 315/70 = 9 целых 15/70 = 9 целых 3/14

2. Now we can substitute this result back into the original expression:

   (6 целых - 2 целых 1/10 * 2 целых 1/7) * 4/15

   = (6 целых - 9 целых 3/14) * 4/15

3. Next, we need to subtract the mixed numbers:

   6 целых - 9 целых 3/14 = (6 * 14 + 0) / 14 - (9 * 14 + 3) / 14

   markdownCopy code
                        = (84 - 129) / 14
                        
                        = -45/14
   

4. Substituting this result back into the expression:

   (-45/14) * 4/15

5. Multiplying the fractions:

   (-45/14) * (4/15) = -6/14 = -3/7

Therefore, the final result is -3/7.