Fractions: Halves, Thirds, and Fourths — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each word into the correct category.
Fraction
one-halfone-fourthone-third Whole Number
threetenseven Fractions name parts of a whole, like one-half, one-fourth, and one-third. Whole numbers like three, ten, and seven count complete objects, not parts of them.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A shape divided into 2 equal parts shows halves.
When a shape is split into 2 equal parts, each part is one-half, so together those parts are called halves.
2. 14 means one part out of 4 equal parts.
The bottom number in a fraction tells how many equal parts the whole is split into, and 14 has a 4 on the bottom, meaning 4 equal parts.
3. A circle split into 3 equal pieces shows thirds.
Splitting a circle into 3 equal pieces makes thirds, because each piece is one-third of the whole circle.
4. 12 means one part out of 2 equal parts.
The fraction 12 has a 2 on the bottom, which shows the whole was cut into 2 equal parts and one of those parts is being named.
5. When you cut a pie into 4 equal slices, each slice is one fourth.
Cutting a pie into 4 equal slices makes fourths, so each single slice is one fourth of the whole pie.
Part C: True or False?
Read each statement. Circle True or False.
1. One-half means a shape is divided into 2 equal parts.
True False
True. One-half describes a whole that has been divided into 2 equal parts, and one of those parts is the half.
2. One-third is bigger than one-half.
True False
False. When a shape is split into more pieces, each piece gets smaller, so one-third is actually smaller than one-half.
3. A shape divided into 4 equal parts shows fourths.
True False
True. Four equal parts of a whole are called fourths, and each piece is one-fourth.
4. One-fourth means a shape has 3 equal parts.
True False
False. One-fourth means a shape has been split into 4 equal parts, not 3, and the fraction names just one of those 4 parts.