Question

7/8-(-3/10) найдите значения

Answer 1

Ответ:

47/40 = 1 7/40

Пошаговое объяснение:

7/8 + 3/10

Answer 2

To solve the expression, simply follow these steps:

Step 1: Change the subtraction of a negative fraction to addition. Step 2: Find a common denominator for the two fractions (in this case, 40). Step 3: Perform the arithmetic.

Let's go through it step-by-step:

Step 1: Change the subtraction of a negative fraction to addition.

7/8 + 3/10

Step 2: Find a common denominator for the two fractions.

The common denominator for 8 and 10 is 40.

Step 3: Perform the arithmetic.

To convert both fractions to have a denominator of 40:

For 7/8: Multiply the numerator and denominator by 5: (7 * 5) / (8 * 5) = 35 / 40

For -3/10: Multiply the numerator and denominator by 4: (-3 * 4) / (10 * 4) = -12 / 40

Now, add the fractions:

35/40 + (-12/40) = (35 - 12) / 40 = 23 / 40

So, the value of the expression 7/8 - (-3/10) is 23/40.