two thirds minus five ninths equals?
2/3 - 5/9 =
First you need to find the common denominator and change 2/3 to 6/9
6/9 - 5/9 = ??
2x3
it's 1/9
the answer is 1/9
2*3=6
3+3=6
2+2+2=6
1/9
1/3 - 5/9
Find the common denominator/LCM of 3 and 9:
factors of 3 ~ 3 6 9 12 15 18 21 24 27 30
factors of 9 ~ 9 18 27 36 45 54 63 72 81 90
9 is the common denominator/LCM
So
1/3: The denominator becomes 9 but whatever you do to the denominator you do to the numerator, 3*3=9, so 1*3=3 (3 is the numerator, 9 is the denominator)
1/3 becomes 3/9 and since the denominator in 5/9 is already 9, 5/9 stays 5/9.
Then you do 3/9 - 5/9 = 8/9 (you don't minus the denominator)
My explaining is really bad but I hope this helps,
Good Luck on future questions! (by the way, i'm in 6th grade).