
13 2/5 — 11,2 : 9 1|3


Ответы на вопрос

2)13 2/5-1 1/5=12 1/5=12.2



1) 112/10:28/3=4/10=2/5
2)67/5-2/5=65/5=13



It looks like you've provided a mathematical expression that involves a mixture of whole numbers and fractions. Let's break down the expression step by step:
13 2/5: This is a mixed number, which consists of a whole number (13) and a fraction (2/5). It can be converted to an improper fraction by multiplying the whole number (13) by the denominator of the fraction (5) and then adding the numerator (2):
13 * 5 + 2 = 65 + 2 = 67 So, 13 2/5 is equivalent to the improper fraction 67/5.
11,2: This seems to be a decimal number, which is 11.2.
9 1|3: This is another mixed number, with a whole number part (9) and a fraction (1/3). Similar to the first mixed number, you can convert it to an improper fraction by multiplying the whole number (9) by the denominator of the fraction (3) and then adding the numerator (1):
9 * 3 + 1 = 27 + 1 = 28 So, 9 1|3 is equivalent to the improper fraction 28/3.
Now, let's plug these values back into the original expression:
(67/5) - 11.2 : (28/3)
To proceed, let's first convert the decimal number (11.2) to a fraction. It can be expressed as 112/10:
(67/5) - (112/10) : (28/3)
Now, let's perform the arithmetic operations:
Multiply the fractions by 10 to eliminate the decimal in the second fraction: (67/5) - (112/10) : (28/3) = (67/5) - (1120/100) : (28/3)
Find a common denominator for the fractions in the expression. The least common multiple of 5, 100, and 3 is 300, so we'll use that: (67/5) - (1120/100) : (28/3) = (67/5) - (3360/300) : (280/300)
Perform the subtraction and division: (67/5) - (3360/300) : (280/300) = (1340/100) - (3360/300) : (280/300)
Perform the division operation: (1340/100) - (3360/300) : (280/300) = (1340/100) - (1120/100)
Subtract the fractions: (1340/100) - (1120/100) = 220/100 = 11/5
So, the final result of the expression is 11/5.


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