Question

Сложите неправильные дроби и выразите в виде смешанных чисел. 1)13/5+8/5. 3)13/8+17/8+15/8 помогите пожалуйста

Answer 1

1) 21\5    2) 45\8= 5 5\8

Answer 2

Adding Improper Fractions and Expressing as Mixed Numbers

To add improper fractions and express the sum as a mixed number, follow these steps:

1) 13/5 + 8/5:

To add these fractions, we need to have a common denominator. In this case, the denominator is already the same (5). So, we can simply add the numerators:

13/5 + 8/5 = (13 + 8)/5 = 21/5

Now, let's express the result as a mixed number. To do this, we divide the numerator (21) by the denominator (5) and write the quotient as the whole number part of the mixed number. The remainder becomes the numerator of the fractional part:

21 ÷ 5 = 4 remainder 1

So, the mixed number is 4 1/5.

2) 13/8 + 17/8 + 15/8:

Again, we have the same denominator (8), so we can add the numerators:

13/8 + 17/8 + 15/8 = (13 + 17 + 15)/8 = 45/8

Now, let's express the result as a mixed number:

45 ÷ 8 = 5 remainder 5

So, the mixed number is 5 5/8.

I hope this helps! Let me know if you have any further questions.