Formula
Multiply all the numerators (top numbers) together and all the denominators (bottom numbers) together
| a |
| b |
| c |
| d |
| a x c |
| b x d |
Example:
| 4 |
| 6 |
| 6 |
| 12 |
Multiply numerators together and denominators together
| 4 |
| 6 |
| 6 |
| 12 |
| 4 x 6 |
| 6 x 12 |
| 24 |
| 72 |
Simplify the fraction if possible
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| 24 |
| 72 |
| 24 ÷ 24 |
| 72 ÷ 24 |
| 1 |
| 3 |