Math 6. Grade - Fractions - Part 2

If you want to know what fraction 25m is of 100m, which calculation is correct?

• 100m : 25m
• 100m · 25m
• 25m : 100m
• 100m · 0,25

What whole number may not be used to extend a fraction?

• 1
• -1
• 0
• 1000

"25 chocolates of 75 are mint chocolates." Choose the fully reduced fraction:

• 25/75
• 1/3
• 5/15
• 1/4

Which fractions can be extended to the denominator 10?

• 1/2

• 2/3

• 3/4

• 4/5

• 5/6

What can you do to find the least common denominator of multiple fractions?

• Find the least common multiple of the denominators

• extend or reduce them to the same denominator

• multiply them by 2

• divide them by 2

Prime factorization: 18 = 2 · 3 · 3 and 28 = 2 · 2 · 7 What is the least common multiple?

• 2 · 3 · 3 · 7 = 126
• 2 · 2 · 2 · 3 · 3 · 7 = 504
• 2 · 3 · 7 = 42
• 2 · 2 · 3 · 3 · 7 = 252

Which statements about rational numbers are true?

• There are an infinite number of rational numbers between 0 and 1

• 1, 2, 3 are NOT rational numbers

• The absolute value of a rational number is always positive (or zero)

• 4/-3 and -1 1/3 are the same rational numbers

Choose the correct sign for the placeholder _ in this term: 3,86352 _ 3,86532

• <
• >
• =

Choose the correct sign for the placeholder _ in this term: 3/4 _ 0,5

• <
• >
• =

"Of the 30 students, 24 use the bus to school". Choose the fully reduced fraction:

• 2/3
• 1/3
• 4/6
• 24/30