Write a number sentence that equals 3/6

One half times three equals 3/6

There are different ways to make 3/6, we could separate 1/3 (3/2) or 3 (1/6). In sentence would be:

One third of three half equals three sixth. 3 times one sixth.

The important thing when we write a number sentence, it's to ensure we are including operation, in this case, multiplication is often written as "of", and "times".