To determine which pairs of ratios are equivalent, we can simplify each ratio and compare:
-
1/2 and 3/6:
- 3/6 simplifies to 1/2.
- Equivalent.
-
3/4 and 9/20:
- 9/20 cannot be simplified to 3/4 (3/4 = 0.75, 9/20 = 0.45).
- Not equivalent.
-
1/2 and 10/20:
- 10/20 simplifies to 1/2.
- Equivalent.
-
1/4 and 5/16:
- 5/16 cannot be simplified to 1/4 (1/4 = 0.25, 5/16 = 0.3125).
- Not equivalent.
Equivalent ratios selected: 1/2 and 3/6; 1/2 and 10/20.