Answer: 4/6, 6/9, 8/12, 10/15 are all fractions equal to 2/3.
Step-by-step explanation: If you multiply both numerator and denominator in the fraction by any number, the new multiplied fraction will still be equal to the original fraction because fractions are proportionate.
For example: you can multiply 2/3 by 3.
2 x 3 = 6
3 x 3 = 9
6/9 is equal to 2/3 because the proportions are the same.
Another example: you can multiply 2/3 by 4.
2 x 4 = 8
3 x 4 = 12
8/12 is equal to 2/3 because, like before, the proportions are the same.