Understanding Decimals as Rational Numbers

What is the first step in expressing a terminating decimal as a fraction?

• Multiply the decimal by 100

• Add the decimal to a whole number

• Subtract the decimal from 1

• Write the decimal as a numerator over a power of 10

How do you simplify the fraction 85/1000?

• Divide both numerator and denominator by 10

• Multiply both numerator and denominator by 2

• Divide both numerator and denominator by 5

• Add 5 to both numerator and denominator

What does a bar over digits in a decimal indicate?

• The digits are non-repeating

• The decimal is negative

• The digits are repeating

• The decimal is terminating

How do you convert a repeating decimal like 0.2323... into a fraction?

• Divide by 10

• Multiply by 10 and subtract

• Multiply by 100 and subtract

• Add 1 to the decimal

What is the power of 10 used for converting 0.52 into a fraction?

• 10 to the fourth power

• 10 to the third power

• 10 to the second power

• 10 to the first power

What is the simplified form of 52/100?

• 26/50

• 26/100

• 13/25

• 52/10

How do you convert the improper fraction 7/5 into a decimal?

• Add 1 to the numerator

• Multiply by 2

• Subtract 1 from the denominator

• Divide by 5

What is the decimal representation of 1 and 2/10?

• 1.2

• 1.02

• 1.20

• 1.12

How do you simplify the mixed number 1 and 2/10?

• Multiply both parts by 5

• Divide both parts by 2

• Subtract 1 from the denominator

• Add 1 to the numerator

What is the fraction form of the decimal 4.23 with repeating 23?

• 4 and 23/100

• 4 and 23/99

• 4 and 23/10

• 4 and 23/9