Question

5/7и1/2 ,3/26и5/39 привести к общему знаменателю

Answer 1

5/7 и 1/2  = 10/14 и 7/14
3/26 и 5/39 = 9/78 и 10/78

Answer 2

Converting Fractions to a Common Denominator

To add the fractions 5/7 and 1/2, and 3/26 and 5/39 and bring them to a common denominator, we can follow these steps:

1. Find the least common multiple (LCM) of the denominators. 2. Convert each fraction to an equivalent fraction with the common denominator found in step 1. 3. Add the fractions.

Step 1: Find the Least Common Multiple (LCM) of the Denominators

The denominators for the fractions are 7, 2, 26, and 39. To find the least common multiple, we can use the LCM of 7, 2, 26, and 39.

The LCM of 7, 2, 26, and 39 is 546.

Step 2: Convert Fractions to Equivalent Fractions with the Common Denominator

For the fractions 5/7 and 1/2: - Equivalent fraction for 5/7 with a denominator of 546 is 390/546. - Equivalent fraction for 1/2 with a denominator of 546 is 273/546.

For the fractions 3/26 and 5/39: - Equivalent fraction for 3/26 with a denominator of 546 is 63/546. - Equivalent fraction for 5/39 with a denominator of 546 is 70/546.

Step 3: Add the Fractions

Now, we can add the equivalent fractions: - 5/7 + 1/2 becomes 390/546 + 273/546. - 3/26 + 5/39 becomes 63/546 + 70/546.

Result

- 5/7 + 1/2 equals 663/546. - 3/26 + 5/39 equals 133/546.

Therefore, the sum of 5/7 and 1/2 and the sum of 3/26 and 5/39 when brought to a common denominator of 546 are 663/546 and 133/546 respectively.