⚖ Ratios and unit rates
Unit 3 · Numbers & functions · 9 min
A unit rate is the amount "per one": picking 3 kg in 60 minutes means 20 minutes per kg. To compare options, find each unit rate first. A ratio 2:3 means every 2 parts go with 3 parts.
Words in this lesson
- 比 (bǐ) — ratio
- 速度 (sù dù) — speed
Project: Time yourself reading 3 pages and work out the time per page.
