Comparing Fractions — Answer Key
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
In Grade 3, since 5/8 has more pieces than 3/8, we says 5/8 is greater.
Corrected: In Grade 3, since 5/8 has more pieces than 3/8, we say 5/8 is greater.
The pronoun we takes the base verb say, not says, in Grade 3 writing.
2. Fix the sentence:
Grade 3 learners knows that 4/12 is less than 7/12 because fewer pieces.
Corrected: Grade 3 learners know that 4/12 is less than 7/12 because fewer pieces.
Learners is plural, so Grade 3 writing uses the verb know without an s.
3. Fix the sentence:
Grade 3 students compares 2/5 and 2/8 by looking at denominator size.
Corrected: Grade 3 students compare 2/5 and 2/8 by looking at denominator size.
Plural subjects in Grade 3 writing take the base verb compare, not compares.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. In Grade 3, 7/10 is greater than 3/10 because the numerator is larger.
Same denominator means compare numerators; 7 is greater than 3.
2. Grade 3 rule: 4/12 is less than 9/12 since 4 pieces is fewer than 9.
With equal denominators in Grade 3, smaller numerator means the fraction is less.
3. In Grade 3, 5/8 and 5/10 share numerators, so 5/8 is greater than 5/10.
Grade 3 lesson: same numerator, smaller denominator makes each piece larger.
4. Grade 3 fact: 2/5 is equal to 2/5 because both fractions are identical.
In Grade 3, matching numerator and denominator means the fractions are equal.
Part C: True or False?
Read each statement. Circle True or False.
1. In Grade 3, 7/10 is greater than 4/10 because 7 is more than 4.
True False
Grade 3 rule: equal denominators let us compare numerators directly, so true.
2. Grade 3 fact: 5/8 is smaller than 5/12 since both have numerator 5.
True False
In Grade 3, with same numerator, 5/8 has larger pieces, making the claim false.
3. In Grade 3, 4/12 equals 4/12 because the fractions are exactly the same.
True False
Grade 3 learners know identical numerators and denominators mean equal value.