Question

87,06 + 0, 316 - 2 3/4 =

Answer 1

перевести неправильную дробь в десятичную

2 3/4=2,75

87,06+0,316-2,75= 84,626

Answer 2

87,06+0,316-2цел.3/4=87,06+0,316-11/4=87,06+0,316-2,75=84,626

Answer 3

To calculate this expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

Let's break down your expression step by step:

1. 87.06 (no operations, so it remains the same)
2. • 0.316 (addition)
3. • 2 3/4 (subtraction)

First, we'll subtract the mixed number:

2 3/4 = 2 + 3/4 = 8/4 + 3/4 = 11/4

Now, subtract 11/4 from the previous result:

87.06 + 0.316 - 11/4

To perform this subtraction, you need a common denominator for 0.316 and 11/4. The common denominator is 4.

So, convert 0.316 to a fraction with a denominator of 4:

0.316 = 316/1000 = 79/250

Now, subtract:

87.06 - 79/250 - 11/4

To subtract fractions, you need a common denominator. In this case, it's 250 (the least common multiple of 250 and 4). Adjust the fractions:

87.06 * 1000/1000 - 79/250 * 4/4 - 11/4 * 250/250

Now, subtract:

(87.06 * 1000 - 316/250 - 2750/250) / 1000

Calculate each part:

(87060 - 316 - 2750) / 1000

Now, subtract:

(84000) / 1000

Finally, divide:

84000 / 1000 = 84

So, the result of the expression is 84.