answer the below question I am really confused
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this is the answer , mark me as brainliest
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1) -3/4 + 2/9
=> -27+8/36
=> -19/36
2) 5/6 * -4/7
= -20/42
= - 10/ 21
3) -3/7
4) 27/2 + 54/3 + 61/4
LCM of 2,3,4 = 12
( 126 + 216 + 183 ) / 12
525 / 12
5)let x be the number to be added to 2/7 to get 5/4
then
2/7 + x = 5/4
x = 5/4 + 2/7. LCM of 4 and 7 = 28
=( 35 + 8 )/7
= 43 / 7
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