Answer:
( 33/20 ) or ( 1 13/20 )
Explanation:
20 is a common denominator of 4 and 10
20/4 = 5
20/10 = 2
so 3 x 5/4 x 5 = 15/20
and 9 x 2/10 x 2 = 18/20
add 15 + 18 = 33/20
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