Checkpoint: fractions and the decimals they make

What is 0.375 as a fraction in lowest terms?

• 3/80
• 375/100
• 3/8

What is halfway between 1/3 and 1/2?

• Nothing. They are next door to each other.
• 2/5, from adding the tops and adding the bottoms
• 5/12

Which fraction has a decimal that stops?

• 5/12, since 12 is an even number
• 7/40, since 40 = 2 × 2 × 2 × 5
• 1/6, since 6 is a small number

Dividing by 7, what is the most digits a block can have?

• 6 digits
• 7 digits
• No limit

Which lines share a tail for d = 0.2555…?

• 10d = 2.555… and 100d = 25.555…
• d = 0.2555… and 10d = 2.555…
• d = 0.2555…, 10d = 2.555… and 100d = 25.555…