Mixed numbers and improper fractions
The Maths Habit
Ben and Sam each have some cake. All the cakes are the same size. Who has more cake?
Ben4 halves and 1 half: 5 halves
The same. Each whole cake is 2 halves.
- Mixed number
- A whole number and a fraction together.
- Improper fraction
- A fraction with a top number bigger than its bottom number.
- Denominator
- The bottom number of a fraction. It tells you how many equal parts make one whole.
How many parts are there?
wholes×bottom+top=all the parts
soall the partsbottom
- 1Cut each whole into parts.The bottom number tells you how many parts.
- 2Count all the parts.Wholes times parts in each whole, then add the parts left.
- 3Keep the bottom.The parts do not change size.
Write 213 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
2×3+1=7
3Keep the bottom.
so73
Write 134 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
1×4+3=7
3Keep the bottom.
so74
Write 213 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
2×3+1=7
3Keep the bottom.
so73
1Cut each whole into parts.2Count all the parts.3Keep the bottom.
Write 225 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
2×5+2=12
3Keep the bottom.
so125
Write 213 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
2×3+1=7
3Keep the bottom.
so73
1Cut each whole into parts.2Count all the parts.3Keep the bottom.
Write 312 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
3×2+1=7
3Keep the bottom.
so72
Write 213 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
2×3+1=7
3Keep the bottom.
so73
1Cut each whole into parts.2Count all the parts.3Keep the bottom.
Write 145 as an improper fraction.
1Cut each whole into parts.
2Count all the parts.
1×5+4=9
3Keep the bottom.
so95
1Cut each whole into parts.2Count all the parts.3Keep the bottom.
1Write 112 as an improper fraction.
2Write 215 as an improper fraction.
3Write 113 as an improper fraction.
4Write 334 as an improper fraction.
full wholesparts left
sofull wholesparts leftbottom
- 1Fill the wholes.Shade the parts one whole at a time.
- 2Count the full wholes and the parts left.A full bar is 1 whole.
- 3Keep the bottom.The parts left make the fraction.
Write 73 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so213
Write 113 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
3full wholes2parts left
3Keep the bottom.
so323
Write 73 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so213
1Fill the wholes.2Count the full wholes and the parts left.3Keep the bottom.
Write 94 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so214
Write 73 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so213
1Fill the wholes.2Count the full wholes and the parts left.3Keep the bottom.
Write 52 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so212
Write 73 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
2full wholes1parts left
3Keep the bottom.
so213
1Fill the wholes.2Count the full wholes and the parts left.3Keep the bottom.
Write 143 as a mixed number.
1Fill the wholes.
2Count the full wholes and the parts left.
4full wholes2parts left
3Keep the bottom.
so423
Is it right?
Thumbs up: right. Thumbs down: wrong.
123 = 53
Right
214 = 214
Wrong: it is 94
72 = 312
Right
115 = 115
Wrong: it is 215
315 = 85
Wrong: it is 165
Write 437 as an improper fraction.
317
Write 476 as a mixed number.
756
Write 212 as an improper fraction with a bottom number of 6.
156
Write 135 as an improper fraction.
85
Write 74 as a mixed number.
134
Write 413 as an improper fraction.
133
Exit tickets to print