Multiply the two fractions.

**Step 1: Multiply Numerator and Denominator:**

Multiply two fractions by multiplying their numerators and multiplying their denominators:

**Step 2: Check whether you can simplify "crosswise":**

3 and 9 can be simplified by the number 3.

6 and 4 can be simplified by the number 2.

3 × 6 | = | 1 × 3 |

| |

4 × 9 | 2 × 3 |

**Step 3: Multiply!**

1 × 3 | = | 3 |

| |

2 × 3 | 6 |

**Step 4: Check whether the result can be simplified**

The result can be simplified by the number 3: