Question

In a fish tank, 1/5 of the fish are guppies and 1/12 of the fish are goldfish. Which equation most closely estimates the fraction of fish that are guppies or goldfish in the fish tank?

Answer 1

Answer:

$\frac{1}{4} + 0 = \frac{1}{4}$

Step-by-step explanation:

$\frac{1}{5} + \frac{1}{12} = \frac{12}{60} + \frac{5}{60} = \frac{17}{60}$

1/5 is close to 1/4, 1/12 is close to 0, so

1/5 + 1/12 = 17/60, which is close to 1/4.