Expressing Amounts as Fractions and Percentages

This NSW Year 8 maths subtopic (NESA outcome MA4‑FRC‑C‑01) writes one amount as a fraction or a percentage of another. Both amounts are changed to the same unit first, then the part is written over the whole and simplified.

You will turn test marks such as 24 out of 32 into 75%, compare 850 g with a 3.4 kg packet of rice, round a percentage that does not stop, and find a percentage increase or a loss as a percentage of the cost price. Netball shooting records, a guitar solo’s share of a song and the free space on a phone show how often one quantity is compared with another. It is part of Year 8 Fractions and Percentages.