Wednesday
Wednesday: Share with unit fractions
Rosie the Rabbit carries a jug with 1/2 liter of water.
"I have 3 new seedlings," she says. "Each one needs the same share."
Bennie the Bear draws a bar in the dirt and shades half of it.
"Split the half into 3 equal parts," he says.
Rosie counts the tiny parts. "Each part is 1/6 of the whole bar!"
Then she spots her ribbon. "This ribbon is 3 meters long."
"How many 1/4 meter bows can I make?"
Bennie smiles. "Each meter holds 4 fourths. So count the fourths in 3 meters."
Learn it: a unit fraction divided by a whole number
1/2 ÷ 3 means: share 1/2 into 3 equal parts.
Each part is 1/6 of the whole.
Check with multiplying: 3 × 1/6 = 3/6, and 3/6 is the same as 1/2.
Sharing a fraction makes each share smaller.
- Read the question.
- Tap your answer.
Learn it: a whole number divided by a unit fraction
3 ÷ 1/4 means: how many fourths fit in 3 wholes?
Each whole holds 4 fourths.
So 3 wholes hold 3 × 4 = 12 fourths.
Check: 12 × 1/4 = 12/4, and 12/4 = 3.
- Read the question.
- Tap your answer.
- Read the question.
- Tap your answer.
- Think about how Bennie divides and checks.
- Tap the steps in order.
| Sentence | True or false? |
|---|---|
| 1/2 ÷ 4 = 1/8 | ? |
| 3 ÷ 1/2 = 6 | ? |
| 1/5 ÷ 2 = 2/5 | ? |
| 2 ÷ 1/3 = 5 | ? |
Fold it again so the half is split into 3 equal parts.
Open it up. How many parts does the whole sheet have now?
What fraction of the sheet is each small part?
Super sharing! Tomorrow Chris tells a garden story full of fractions.