Question

Решите пожалуйста примеры 60*(8/15-5/12)= 0,6*(21,5-7,5)=

Answer 1

60*(8/15-5/12)=7

0,6*(21,5-7,5)=8,4

Answer 2

I can help you solve math problems step by step. Here are the solutions to your examples:

60*(8/15-5/12)= To solve this problem, we need to follow the order of operations: parentheses, exponents, multiplication and division, and addition and subtraction. First, we simplify the expression inside the parentheses by finding the common denominator of 15 and 12, which is 60. Then, we convert the fractions to have the same denominator and subtract them.

60*(8/15-5/12)= 60*(\frac{8}{15}-\frac{5}{12})= 60*(\frac{8\cdot 4}{15\cdot 4}-\frac{5\cdot 5}{12\cdot 5})= 60*(\frac{32}{60}-\frac{25}{60})= 60*(\frac{32-25}{60})= 60*(\frac{7}{60})

Next, we multiply the fraction by 60, which is equivalent to canceling out the 60 in the denominator and numerator.

60*(\frac{7}{60})= \frac{60\cdot 7}{60}= \frac{60}{60}\cdot 7= 1\cdot 7= 7

Therefore, the final answer is 7.

0,6*(21,5-7,5)= To solve this problem, we need to follow the order of operations again. First, we simplify the expression inside the parentheses by subtracting 7,5 from 21,5.

0,6*(21,5-7,5)= 0,6*(21,5-7,5)= 0,6*(14)

Next, we multiply 0,6 by 14, which is equivalent to multiplying 6 by 14 and dividing by 10.

0,6*(14)= \frac{6\cdot 14}{10}= \frac{84}{10}= 8,4

Therefore, the final answer is 8,4.

I hope this helps you understand how to solve math problems. If you need more help, you can use one of these online math solvers that can show you the steps and explanations for different types of problems.