Question

3 5/7+3 13/21 2 17/36+7 5/8

Answer 1

Ответ:

$35 \div 7 + 313 \div 21 = 5 + 14 \frac{19}{21} = 19 \frac{19}{21} \\ 217 \div 36 + 75 \div 8 = 6 \frac{1}{36} + 9 \frac{3}{8} = 15 \frac{2 + 27}{72} = 15 \frac{29}{72 \\}$

Answer 2

To add the given fractions, we need to find a common denominator and then add the numerators.

Let's add the fractions step by step:

1. 3 5/7 + 3 13/21: To add the whole numbers and fractions separately, we have: 3 + 3 = 6 (whole numbers) 5/7 + 13/21: To find a common denominator, we need to find the least common multiple (LCM) of 7 and 21, which is 21. Now, we can rewrite the fractions with a common denominator: 5/7 = 15/21 13/21 (already in terms of 21) Now, we can add the fractions: 15/21 + 13/21 = 28/21 Since 28/21 can be simplified, we have: 28/21 = 4/3

Putting it all together, we have: 3 5/7 + 3 13/21 = 6 + 4/3 = 6 4/3

2. 2 17/36 + 7 5/8: Again, let's add the whole numbers and fractions separately: 2 + 7 = 9 (whole numbers) 17/36 + 5/8: To find a common denominator, we need to find the least common multiple (LCM) of 36 and 8, which is 72. Now, we can rewrite the fractions with a common denominator: 17/36 = 34/72 5/8 = 45/72 Now, we can add the fractions: 34/72 + 45/72 = 79/72

Putting it all together, we have: 2 17/36 + 7 5/8 = 9 + 79/72 = 9 79/72

Therefore, the results are: 3 5/7 + 3 13/21 = 6 4/3 2 17/36 + 7 5/8 = 9 79/72