2/3
Yes.
19,20,21
All numbers must be expressed in thirds in order to add or subtract them. 3 = 9/3 1 = 3/3 1 2/3 = 3/3 + 2/3 = 5/3 So, 3 - 1 2/3 = 9/3 - 5/3 = 4/3 = 1 1/3
You have to put the slash after the numbers one half is 1/2 three thirds is 3/3
2/3
Yes.
19,20,21
All numbers must be expressed in thirds in order to add or subtract them. 3 = 9/3 1 = 3/3 1 2/3 = 3/3 + 2/3 = 5/3 So, 3 - 1 2/3 = 9/3 - 5/3 = 4/3 = 1 1/3
Yes indeed. That's exactly what "divisible by 3" means.
2/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
You have to put the slash after the numbers one half is 1/2 three thirds is 3/3
0.6667
There are two ways: one is to start with a multiple of 3 so that the thirds are whole numbers. The second is to write the answer as a rational fraction rather than as a decimal.
There are 9 thirds in 3,
If you mean 3 whole and 2/3, the answer would be 11 thirds. If you mean 3 thirds and 2/3 the answer would be 5 thirds
5/3 (five thirds) = 3/3 + 2/3 (three thirds plus two thirds) 5/3 (five thirds) = 1 2/3 (one and two thirds)