182 Speed Math for Kids
Here is how we do it. We simply multiply the numerators to get the
numerator of the answer, and we multiply the denominators to get
the denominator of the answer. Easy!
Let’s try it to fi nd half of 12.(^12) × (^1) = (^12) = (^6) = 6
1 2 2 1
Any whole number can be expressed as that number over (divided
by) 1. So 12 is the same as ⁄.
Let’s try another:
(^2) × (^4) =
3 5
To calculate the answer, we multiply 2 × 4 to get 8. Th at is the top
number of the answer. To get the bottom number of our answer, we
multiply the bottom numbers of the fractions.
3 × 5 = 15
Th e answer is ⁄. It is as easy as that.
What is half of 17?
(^17) × (^1) =
1 2
Multiply the numerators.
17 × 1 = 17
Seventeen is the numerator of the answer.
Multiply the denominators.
1 x 2 = 2
Two is the denominator of the answer.
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