Question

3 8/15-(1 2/5+3/10) выполнить действие ​

Answer 1

Ответ:

1.12,5+3,10=15,60

2.38,15-15,60=23,55

Answer 2

Відповідь: 8/15-(1 2/5+3/10)=  

2          6      3

8/15-1  2/5 - 3/10=

=16/30 - 12/30 - 9/30= -5/30

Покрокове пояснення: 2,6,3 додаткові множники

Answer 3

To perform the given arithmetic operation, we need to simplify the expression:

3 8/15 - (1 2/5 + 3/10)

First, let's convert the mixed numbers into improper fractions:

3 8/15 = (3 * 15 + 8) / 15 = 53/15 1 2/5 = (1 * 5 + 2) / 5 = 7/5

Now we can rewrite the expression:

53/15 - (7/5 + 3/10)

Next, let's find a common denominator for the fractions inside the parentheses. The least common multiple of 5 and 10 is 10:

53/15 - (7/5 + 3/10) = 53/15 - (14/10 + 3/10)

Now we can add the fractions inside the parentheses:

53/15 - (14/10 + 3/10) = 53/15 - 17/10

To subtract fractions, we need to find a common denominator. The least common multiple of 15 and 10 is 30:

53/15 - 17/10 = (53 * 2)/(15 * 2) - (17 * 3)/(10 * 3) = 106/30 - 51/30

Now we can subtract the fractions:

106/30 - 51/30 = (106 - 51)/30 = 55/30

The resulting fraction, 55/30, can be simplified by dividing the numerator and denominator by their greatest common divisor, which is 5:

55/30 = (55/5) / (30/5) = 11/6

Therefore, the simplified result of the expression 3 8/15 - (1 2/5 + 3/10) is 11/6.