3 and 3/8
1 3/4
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U add 3 to make a whole
2/2 + 3/3 = 1 + 1 = 2
(-1)+(-2)=(-3) (-1)(-2)=2
1 add 4 is 5 and 2 add 3 make 5. 5 add 5 make 10 so 2 x 10 is 20
2/9 + 2/3 = 2/9 + 6/9 = 8/9
They add up to 3/4
4 over 3. In adding fractions, you just add the numerators together if the denominators are the same.
7/15
-5 and +3