Cogito
Grade 4 Math · Chapter 5 · Lesson 6
Mixed Numbers
Whole ones and some pieces left over.
10 problems · about 15 minutes · 4.NF.B.3
Figure — use these to answer the problems
7/4 is greater than 4/4.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
2 problemsFrom “Why 1/2 + 1/3 Is Not 2/5”
1/4 + 1/2, in quarters. What is the top number?
AnswerFrom “Adding Fractions with the Same Unit”
3/10 + 4/10. What is the top number of the answer?
Answer
Warm Up
Straightforward practice. Get the method working first.
4 problems17/5 as a mixed number. What is the whole number part?
Answer2 3/4 in quarters. What is the top number?
Answer13/4 as a mixed number. What is the whole number part?
Answer13/4 as a mixed number. What is the top number of the fraction part?
Answer
Build It Up
The same ideas with more to keep track of.
2 problems3 2/5 in fifths. What is the top number?
AnswerHow many sixths are in 2 whole ones?
Answer
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
2 problemsThe Pizzas
9 quarters of pizza. How many whole pizzas is that?
Answerwhole pizzasThe Ribbon
2 1/5 metres written in fifths. What is the top number?
Answer