
3*2 7/15 - 5 1/2 *7/9+1 7/48 * 2 2/11 - 2/5 * 6 5/9


Ответы на вопрос

3*2 7/15 - 5 1/2 *7/9+1 7/48 * 2 2/11 - 2/5 * 6 5/9 = 6 7/15 - 5 1/2 * 7/9+ 1 7/48 * 2 2/11 - 2/5 * 6 5/9 = 6 7/15 - 4 5/18 + 2 1/2 - 2 28/45 = 2 17/90 + (-11/90) = 2 1/15



To solve this expression, you need to follow the order of operations, which is typically remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division - left to right, Addition and Subtraction - left to right). Here's how you can break down and calculate the expression step by step:
- First, simplify each fraction:
3 * 2 = 6
7/15
5 1/2 = 11/2
7/9
1 7/48 = 55/48
2 2/11 = 24/11
2/5
6 5/9 = 59/9
- Now, perform the multiplications and divisions from left to right:
6 * 7/15 = 42/15 = 14/5
(11/2) * (7/9) = 77/18
(55/48) * (24/11) = (55 * 24) / (48 * 11) = 1320 / 528 = 55/22 = 5/2
(2/5) * (59/9) = 118/45
- Finally, add and subtract from left to right:
(14/5) - (77/18) + (5/2) - (118/45)
To perform addition and subtraction, you need a common denominator, which is 90 in this case:
(14/5) * (18/18) - (77/18) * (5/5) + (5/2) * (45/45) - (118/45)
Now, perform the calculations:
(252/90) - (385/90) + (225/90) - (118/45)
Combine the fractions:
(252 - 385 + 225 - 236) / 90
Now, subtract the numerators:
-144 / 90
Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 18:
(-8/5)
So, the simplified result of the expression is -8/5.


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