Question

( 4/15 - 3 9/10) 6 6/7 + 2=

Answer 1

Ответ:

176,4

Пошаговое объяснение:

на фото

Answer 2

Ответ:

-22 32/35

Пошаговое объяснение:

(4/15 - 3 9/10) * 6 6/7 + 2 = (8/30 - 3 27/30) * 48/7 + 2 =

-3 19/30 * 48/7 + 2 = -109/30*48/7 + 2 = -872/35 + 2 =

-24 32/35 + 2 = -22 32/35

Answer 3

Let's break down the expression step by step:

1. First, we'll subtract the mixed numbers:

   4/15 - 3 9/10

   To subtract mixed numbers, we need to convert them into improper fractions.

   3 9/10 = (3 * 10 + 9)/10 = 39/10

   Now, we can subtract the fractions:

   4/15 - 39/10

2. Find a common denominator. The common denominator for 15 and 10 is 30.

   Rewrite both fractions with a common denominator:

   (4/15) * (2/2) = 8/30 (39/10) * (3/3) = 117/30

3. Subtract the fractions:

   8/30 - 117/30 = (8 - 117)/30 = -109/30

Now, let's proceed with the rest of the expression:

4. The expression becomes:

   (-109/30) * 6 6/7 + 2

5. Convert the mixed number into an improper fraction:

   6 6/7 = (6 * 7 + 6)/7 = 48/7

6. Now, multiply the fractions:

   (-109/30) * (48/7)

7. Multiply the numerators and denominators:

   (-109 * 48) / (30 * 7) = (-5232) / 210

8. Reduce the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 6:

   (-5232 / 6) / (210 / 6) = -872 / 35

Now, add 2 to the result:

-872/35 + 2

To add these two numbers, we need a common denominator:

-872/35 = (-872/35) * (7/7) = -6104/35

Now, add:

-6104/35 + 2/1 = (-6104 + 70) / 35 = -6034/35

So, the final result is:

-6034/35