Multiplying Fractions
Multiply the tops, multiply the bottoms.
There are 3 simple steps to multiply fractions1. Multiply the top numbers (the numerators). 2. Multiply the bottom numbers (the denominators). 3. Simplify the fraction if needed. |
Example 1
| 1 | × | 2 |
| 2 | 5 |
Step 1. Multiply the top numbers:
| 1 | × | 2 | = | 1 × 2 | = | 2 |
| 2 | 5 |
Step 2. Multiply the bottom numbers:
| 1 | × | 2 | = | 1 × 2 | = | 2 |
| 2 | 5 | 2 × 5 | 10 |
Step 3. Simplify the fraction:
| 2 | = | 1 |
| 10 | 5 |
(If you are unsure of the last step see Equivalent Fractions)
With Pen and Paper
And here is how to do it with a pen and paper (press the play button):
Example 2
| 1 | × | 9 |
| 3 | 16 |
Step 1. Multiply the top numbers:
| 1 | × | 9 | = | 1 × 9 | = | 9 |
| 3 | 16 |
Step 2. Multiply the bottom numbers:
| 1 | × | 9 | = | 1 × 9 | = | 9 |
| 3 | 16 | 3 × 16 | 48 |
Step 3. Simplify the fraction:
| 9 | = | 3 |
| 48 | 16 |
Mixed Fractions
You can also read how to multiply mixed fractions