7 3/4 + 2 1/5 is pretty simple honestly. You make the denominator 20, so the equation is now 7 15/20 + 2 4/20 because whatever you do to the top you do to the bottom which leaves you with simple math.. The answer is 9 19/20 :D
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2/3 + 1/6 + 1/6 = 1
The answer is 1/2 plus 3/10 = 4/5 in its simplest form
One over six plus one over six is 2/6. That fraction can be reduced to 1/3. Two over three is written as 2/3. 2/3 plus 1/3 is equal to 1, or a whole.
2 over 3 plus 5 over 9 equals 11 over 9 or 1 and 2 ninths.
Three over four