Fractions
Fractions as divisions and as decimals, adding and multiplying fractions and mixed numbers, and fraction word problems.
14 topics83 episodes36 min in all
Contents
1 Division of whole numbers as fractions 10 episodes · 4 min
Sharing things equally, and writing a division as a fraction or a mixed number. Topic page ›
- 1.1 Three pancakes for five children 0:17
- 1.2 Two cereal bars for three children 0:16
- 1.3 Ten buns for four children 0:30
- 1.4 Divisions as mixed numbers 0:22
- 1.5 Fractions as divisions 0:27
- 1.6 Flour shared into nine portions 0:21
- 1.7 A rope cut into five pieces 0:28
- 1.8 Lemonade poured into seven jugs 0:29
- 1.9 How many times as long as the eraser 0:27
- 1.10 Soya milk shared among sixteen cups 0:21
2 Converting fractions to decimals 8 episodes · 3 min
Turning a fraction into a decimal by dividing, and rounding it to 2 decimal places. Topic page ›
- 2.1 Fractions as decimals 0:32
- 2.2 Divide, then round to 2 decimal places 0:27
- 2.3 Decimals by calculator, correct to 2 places 0:39
- 2.4 A wire cut into five parts 0:28
- 2.5 The cost of one bead 0:17
- 2.6 A hose cut into thirty pieces 0:20
- 2.7 Peanuts and cashew nuts 0:22
- 2.8 Lemonade left in the jug 0:23
3 Recall: adding and subtracting fractions 4 episodes · 2 min
A recap of adding and subtracting fractions whose bottom numbers are different. Topic page ›
4 Adding and subtracting mixed numbers 9 episodes · 4 min
Adding and subtracting mixed numbers, and word problems that use them. Topic page ›
- 4.1 Adding mixed numbers 0:40
- 4.2 Subtracting mixed numbers 0:38
- 4.3 Water in a full bucket 0:17
- 4.4 Rice left after the party 0:16
- 4.5 How far Lin cycled 0:16
- 4.6 How far Kiri and Daniel ran 0:21
- 4.7 Soup in the pot at the end 0:26
- 4.8 The length of the white rope 0:24
- 4.9 Cloth bought in total 0:25
5 Recall: fraction of a set 4 episodes · 1 min
A recap of finding a fraction of a group of things or of a number. Topic page ›
6 Multiplying a proper fraction and a whole number 6 episodes · 3 min
Multiplying a fraction by a whole number, and word problems that use it. Topic page ›
7 Multiplying an improper fraction and a whole number 3 episodes · 1 min
Multiplying an improper fraction by a whole number, and writing the answer as a mixed number. Topic page ›
8 Multiplying two proper fractions 6 episodes · 3 min
Multiplying two fractions, seen as a fraction of a fraction, with word problems. Topic page ›
9 Multiplying a proper fraction and an improper fraction 4 episodes · 2 min
Multiplying a fraction by an improper fraction, with the answer as a mixed number. Topic page ›
10 Multiplying two improper fractions 3 episodes · 2 min
Multiplying two improper fractions and writing the answer in its simplest form. Topic page ›
11 Multiplying a mixed number and a whole number 7 episodes · 3 min
Multiplying a mixed number by a whole number: the wholes first, then the fraction. Topic page ›
12 Fraction of a remainder 5 episodes · 2 min
Finding what is left of a bar, then a fraction of what is left. Topic page ›
13 Word problems 11 episodes · 5 min
Word problems with a fraction of an amount and a fraction of the rest, solved with bar models. Topic page ›
- 13.1 Children who borrow comic books 0:25
- 13.2 Money spent on a water bottle 0:23
- 13.3 Cheese sandwiches 0:26
- 13.4 Girls at the funfair 0:26
- 13.5 The cost of the kettle 0:20
- 13.6 Money spent on snacks 0:26
- 13.7 A fifth of a number, then a quarter 0:21
- 13.8 Perimeter and area of a vegetable garden 0:34
- 13.9 Bicycle and helmet — the difference 0:29
- 13.10 Storybooks and information books 0:29
- 13.11 Mrs Suda's buns 0:30
14 Thinking questions 3 episodes · 2 min
Puzzles: a rectangle inside a square, the money someone started with, and a fifth of a drink against a fifth of a litre. Topic page ›