
use multiplication and division strategies to solve problems that involve simple equivalent fractions and simple conversions between fractions, decimals and percentages.
Learners use strategies to solve problems that involve simple equivalent fractions and simple conversions between fractions, decimals and percentages. For example, a learner knows that:

they can find 3/12 of a number by dividing by 4 because 3/12 = 1/4

1/4 is the same as 0.25 is the same as 25%

1/2 of 1/4 is 1/8 .
Learners solve problems by deriving from known fractions, decimals or percentages. For example, a learner:

finds 20% of 80 by knowing that 10% is 8 and doubling to get 16

finds 1/5 of 70 by knowing that 1/10 is 7 and doubling to get to 14

finds 0.8 of 40 by knowing that 1/10 (0.1) is 4 and 4 x 8 is 32.
Learners use calculators to solve problems involving fractions, decimals and percentages and are able to explain the reasonableness of the answer. For example, “I will divide by 100 on my calculator to find 1% and then multiply by 17 to get 17%” or, alternatively, “17% of 80: 10% is 8 and 20% is 16, so my answer (13.6) is reasonable.”
Fractions of numbers 2
Learners develop an understanding of how to find a fraction of a whole number where the answer may also be a fraction.
Ratios 2
Learners develop an understanding of more complex ratios and explore the relationships between related ratios.