Question

Pls do question fast I will mark you as brainlist answer here is your question give me the answer of question 2 1) part and 6) part

Answer 1

Answer:

Hey mate your answer is as follows

FORMULA USED

In addition and subtraction of integers, we will learn how to add and subtract integers with the same sign and different sign. We can also make use of number line to add and subtract signed integers. There are certain rules for integers that has to be followed to perform operations on them.

__________________________

Adding two positive integers results in positive integers, whereas adding two negative integers will results in the sum with a negative sign. But, the addition of two different signed integers, will result in subtraction only. See few examples below:

2+2 = 4

2 + (-2) = 0

-2 + (-2) = -4

-2 – (-2) = 0

$1. \: \frac{4}{9} + \frac{7}{4} \\ lcm \: is \: 36 \\ \frac{4 \times 4}{9 \times 4} + \frac{7 \times 9}{4 \times 9 } = \frac{16}{36} + \frac{63}{36 } \\ = \frac{16 + 63}{36} = \frac{79}{36}$

$2. \: \frac{5}{12} + ( \frac{ - 9}{20} ) \\ lcm \: is \: 60 \\ \frac{5 \times 5}{12 \times 5} - \frac{9 \times 3}{20 \times 3} = \frac{25}{60} - \frac{27}{60 } \\ = \frac{25 - 27}{60} = \frac{ - 2}{60} = \frac{ - 1}{30}$

Answer 2

2. 1st part

$\frac{4}{9} + \frac{7}{4}$

Taking the LCM of the denominator we get 36.

Now

$\frac{4 \times 4}{9 \times 4} = \frac{16}{36} and \: \frac{7 \times 9}{4 \times 9} = \frac{63}{36}$

Now adding these fractions we get

$\frac{16}{36} + \frac{63}{36} = \frac{79}{36}$

6th part

In the same way, in this question too...

we will take the LCM of the denominator

and we will get 60.

$\frac{5 \times 5}{12 \times 5} = \frac{25}{60} \: and \: \frac{ - 9 \times 3}{20 \times 3} = \frac{ - 27}{60}$

$\frac{25}{60} + \frac{ - 27}{60} = \frac{ - 2}{60} = \frac{ - 1}{30}$

FORMULA USED

In addition and subtraction of integers, we will learn how to add and subtract integers with the same sign and different sign. We can also make use of number line to add and subtract signed integers. There are certain rules for integers that has to be followed to perform operations on them.

__________________________

Adding two positive integers results in positive integers, whereas adding two negative integers will results in the sum with a negative sign. But, the addition of two different signed integers, will result in subtraction only.