Fractions Revision

What fraction of this shape is yellow?

How many blocks would you need to shade in so that 𝟐 𝟑 is shaded?

Which of the following fractions is not equivalent to b: c: d:

If we cancel the fraction 24/30 to its lowest terms, what is the result? b: c: d:

Put the following fractions into numerical order, SMALLEST FIRST: < > a: b: c: d:

What is three quarters of a litre, in millilitres? a: 75 ml b: 250 ml c: 750 ml D: 7500 ml

Out of a class of 24 people, 21 are present Out of a class of 24 people, 21 are present. What fraction are absent, in its lowest form? a: b: c: d:

Calculate the value of: + a: b: c: d:

What is the value of: subtraction a: b: c: d:

Multiplying Fractions

HALF of HALF How much is ½ of ½ a pizza? HALF HALF OF HALF IS ¼

½ of ½ = ¼ ½ x ½ = ¼ can you think of a rule to MULTIPLY FRACTIONS? OF means x ½ of ½ = ¼ ½ x ½ = ¼ can you think of a rule to MULTIPLY FRACTIONS?

can you think of a rule to MULTIPLY FRACTIONS? 1 3 1 4 of

More Examples… can you write the method? Discuss with the person next to you and write the method!

Steps to multiply 2 or more fractions Step 1: Simplify fractions by cancelling a numerator & a denominator Step 2: Multiply the numerators Step 3: Multiply the denominators Step 4: Simplify the fraction further if possible

EXAMPLES 1 6 7 5 6 1x5 7x1 5 7 x = = 1 1 4 5 3 8 1x3 5x2 3 10 x = = 2 2 4 9 6 7 4x2 3x7 8 21 x = = 3

EXAMPLES 1 1 2 6_ 10 5 9 1x1 1x3 1 3 x = = 1 2 3 1 4_ 15 3 8 1 1x1 5x2 1 10 x = = 5 2 1 3 2 21 9 6 35 1x2 1x5 2 5 x = = 3 1 5

Multiplying 3 Fractions 1 4 2 15 × 5 12 × 8 9 1 = 1×1×4 3×3×9 = 4 81 3 6 3

Multiplying 3 Fractions 1 15 33 × 14 25 × 11 21 2 3 1 = 1×2×1 3×5×1 = 2 15 3 5 3 1

Fraction by whole number 2 5 × 15 1 3 2×3 1×1 2 5 ×15= = 3 7 ×21= = =6 1 3 3 7 × 21 1 3×3 1×1 =9 1