Question

4/9 + -7/18 solve rational numbers​

Answer 1

Answer:

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Step-by-step explanation:

4/9+ (-7/18)

4/9 - 7/18

LCM = 18

4/9×2/2 = 8/18

8/18-7/18

8-7/18

1/8

the answer si 1/18

Answer 2

Answer:

1/18

Step-by-step explanation:

1.   4/9 + (-7/18)

2.   4/9 - 7/18

3.  we take out the LCM of the denominators ;

    which is 18 , so:

4. now we make the fractions a set of like fractions ( with denominators 18 ) so that we can perform subtraction easily:

 4/9 x  2/2 = 8/18    and  7/18 x 1/1 = 7/18

5.   now we subtract them ;

    8/18 - 7/18 = 1/18

             so  11/18 is the answer .