Question

2 1/15 + 3/5 = ? 1 1/2 + 3 2/3=? 5- 1 3/5= ? 1 1/3-1/2 = ? 3 1/6- 1 1/3=?

Answer 1

Ответ:

Пошаговое объяснение:

2 1/15 + 3/5=2 1/15 + 3*3/(5*3)=2 (1+9)/15=2 10/15=2 2/3

1 1/2 + 3 2/3=1 1*3/(2*3) +3 2*2/(3*2)=4 (3+4)/6=4 7/6=5 1/6

5- 1 3/5=4 5/5 -1 3/5=3 2/5 или 3,4 2-й вариант: (5-1,6=3,4)

1 1/3 -1/2=4*2/(3*2) -1*3/(2*3)=(8-3)/6=5/6

3 1/6- 1 1/3=2 7/6 -1 (1*2)/(3*2)=1 (7-2)/6=1 5/6

Answer 2

1. To add 2 1/15 and 3/5, we first need to find a common denominator. The smallest number that both 15 and 5 divide into is 15. So we can convert 2 1/15 to an improper fraction with a denominator of 15:

2 1/15 = (2 * 15 + 1)/15 = 31/15

Now we can add the fractions:

31/15 + 3/5 = (31 * 5 + 3 * 15)/(15 * 5) = 208/75

Therefore, 2 1/15 + 3/5 = 208/75.

2. To add 1 1/2 and 3 2/3, we need to convert both mixed numbers to improper fractions:

1 1/2 = (1 * 2 + 1)/2 = 3/2

3 2/3 = (3 * 3 + 2)/3 = 11/3

Now we can add the fractions:

3/2 + 11/3 = (3 * 11 + 2 * 2)/(2 * 3) = 19/6

Therefore, 1 1/2 + 3 2/3 = 19/6.

3. To subtract 1 3/5 from 5, we need to convert 1 3/5 to an improper fraction:

1 3/5 = (1 * 5 + 3)/5 = 8/5

Now we can subtract the fractions:

5 - 8/5 = (5 * 5 - 8)/5 = 17/5

Therefore, 5 - 1 3/5 = 17/5.

4. To subtract 1/2 from 1 1/3, we need to convert 1 1/3 to an improper fraction:

1 1/3 = (1 * 3 + 1)/3 = 4/3

Now we can subtract the fractions:

4/3 - 1/2 = (8/6 - 3/6) = 5/6

Therefore, 1 1/3 - 1/2 = 5/6.

5. To subtract 1 1/3 from 3 1/6, we need to convert both mixed numbers to improper fractions:

3 1/6 = (3 * 6 + 1)/6 = 19/6

1 1/3 = (1 * 3 + 1)/3 = 4/3

Now we can subtract the fractions:

19/6 - 4/3 = (38/6 - 8/6) = 30/6 = 5

Therefore, 3 1/6 - 1 1/3 = 5.