Question

Pls help me im so confuse

Answer 1

3 x 5 / 4x 5 + 1 x 2/ 10 x 2
15/20 + 2/20
15+2/20
17/20

Final answer is 17/20

Answer 2

`\sf (3)/(4) + (1)/(10) = (15)/(20)+(2)/(20)=(17)/(20)`

Explanation:

`\textsf{In order to add }\sf (3)/(4)\textsf{ and } \sf (1)/(10)\textsf{ with a common denominator.}`

We need to find a common multiple of 4 and 10, which is 20.

Then, express both fractions with a denominator of 20:

`\sf (3)/(4) = (3 \cdot 5)/(4 \cdot 5) = (15)/(20)`

`\sf (1)/(10) = (1 \cdot 2)/(10 \cdot 2) = (2)/(20)`

Add them with a common denominator of 20:

`\sf (15)/(20) + (2)/(20) = (15 + 2)/(20) = (17)/(20)`

So, Final answer is:

`\sf (3)/(4) + (1)/(10) = (15)/(20)+(2)/(20)=(17)/(20)`