2nd grade · Math · Unit 8 of 14
Fractions of a Whole
Equal parts: halves, thirds, fourths and more
What your child practices
A fraction names equal parts of one whole. Children read unit fractions such as 1/4 and 1/8, learn that more equal parts means smaller parts, and name fractions like 3/4 from a picture. All wholes are cut into 10 or fewer equal parts.
Minnesota K-12 Academic Standards benchmark: 2.3.5.10 · sharing a whole equally among 2 or 4 groups and naming the parts
How we explain it
Children can open this short lesson before they practice.
- The bottom number tells how many equal parts.
- The top number tells how many parts we mean.
- 1/4 is one of four equal parts.
Example: A pizza has 3 equal slices. What fraction is one slice? There are 3 equal parts. One slice is 1 of 3. Answer: 1/3
Fractions of a Whole in Minnesota
In the Minnesota K-12 Academic Standards, this is unit 8 of 14 in 2nd grade Math, after Numbers to 1000 and before Skip Counting.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
3/5 of a bar is shaded. What fraction is NOT shaded?
- 1/5
- 2/4
- 2/5
2/5
Hint: 5 parts in all, and 3 are shaded. The rest are 2.
Question 2
What fraction of the shape is shaded?
- 2/4
- 1/3
- 2/3
2/3
Hint: Count all the equal parts: 3. Then count the shaded ones: 2.
Question 3
What fraction of the shape is shaded?
- 4/8
- 5/7
- 4/7
4/7
Hint: Count all the equal parts: 7. Then count the shaded ones: 4.
Question 4
1/8 means one of how many equal parts?
- 8
- 9
- 7
8
Hint: The bottom number tells how many equal parts make the whole.
Question 5
Which fraction is one fourth?
- 1/4
- 1/2
- 1/3
1/4
Hint: One fourth is 1 of 4 equal parts.
Question 6
A pizza is cut into 8 equal slices. What fraction is one slice?
🍕- 1/8
- 1/9
- 8/1
1/8
Hint: One slice is one of the equal parts.