Question

1)7,6*(53,3-39,4)+5,1:0,6= 2)4 1/6*0,6+6 2/5:1 1/7-6,7=

Answer 1

Решение на фотографиях

Answer 2

To solve these expressions, let's take them one at a time:

1. 7,6 * (53,3 - 39,4) + 5,1 : 0,6

Step 1: Perform the operations within the parentheses first: 53.3 - 39.4 = 13.9

Step 2: Multiply 7.6 by the result from Step 1: 7.6 * 13.9 = 105.64

Step 3: Divide 5.1 by 0.6: 5.1 / 0.6 = 8.5

Step 4: Add the results from Steps 2 and 3: 105.64 + 8.5 = 114.14

So the answer is: 114.14

2. 4 1/6 * 0.6 + 6 2/5 : 1 1/7 - 6.7

Step 1: Convert the mixed numbers to improper fractions: 4 1/6 = (6 * 4 + 1) / 6 = 25/6 6 2/5 = (5 * 6 + 2) / 5 = 32/5 1 1/7 = (7 * 1 + 1) / 7 = 8/7

Step 2: Perform the operations from left to right according to the order of operations (PEMDAS):

25/6 * 0.6 = 25/6 * 3/5 = 75/30 = 5/2

32/5 : 8/7 = 32/5 * 7/8 = 224/40 = 28/5

Now, we have: 5/2 + 28/5 - 6.7

Step 3: Find a common denominator for the fractions: The common denominator for 2 and 5 is 10, so convert 5/2 to 25/10.

Step 4: Add the fractions and perform the subtraction:

25/10 + 28/5 - 67/10 = (25 + 56 - 67) / 10 = 14 / 10 = 7 / 5

So the answer is: 7/5 or 1.4 when expressed as a decimal.