1st Grade Math · Half
Half of 15
Half of 15 is 7½
15 ÷ 2 = 7½
15 is an odd number, so it does not split into two equal whole groups — 7½ means 7 and a half.
How to find half of 15
- 1Half means splitting 15 into 2 equal groups, so work out 15 ÷ 2.
- 215 is an odd number, so it will not split into two equal whole groups — one group always ends up with one more.
- 3Put 7 in each group and there is 1 left over. Split that last one in half too.
- 4So half of 15 is 7½ — 7 and a half. The even numbers either side, 14 and 16, halve to 7 and 8.
Check it: put the two halves back together and you get 7½ + 7½ = 15.
Halving the numbers near 15
| Number | Half of it |
|---|---|
| Half of 10 | 5 |
| Half of 12 | 6 |
| Half of 14 | 7 |
| Half of 16 | 8 |
| Half of 18 | 9 |
Halving is the same as dividing by 2. Odd numbers like 15 always leave one over, so their halves end in a half. Practise it below — the lesson has 5 problems and gives you the answer the moment you try.
Lesson 15 of 84 · Half
Practise halving 15
Work through halving 15 yourself. Odd numbers always have one left over to split.
Ready?
Half of 15
Half of half is a quarter. Prove it with cake.
Full screen — no distractions
Half of 15 — common questions
What is half of 15?
Half of 15 is 7½, which is 7 and a half. 15 is an odd number, so it does not split into two equal whole groups.
How do you work out half of 15?
Share 15 into two groups. Each group gets 7 with 1 left over, and that last one splits in half — so half of 15 is 7½.
Is 15 an even number?
No. 15 ends in 5, so it is odd — and odd numbers never halve into two equal whole groups.
What is 15 divided by 2?
15 ÷ 2 = 7½. Dividing by 2 and halving are the same thing.
Done with math? Try something else
Print the whole Half track
All 1st Grade Half lessons as a printable PDF, with worksheets and answer keys.