Foundation
USE WHEN
Question asks you to move quickly between fractions, decimals and percentages or compare them.
BEST METHOD
Shortcut Table Method
TARGET
45–60 sec
MASTERY
not started
Question asks you to move quickly between fractions, decimals and percentages or compare them.
A percentage is simply a fraction with denominator 100. Fast conversion reduces calculation time across almost every Arithmetic chapter.
Memorise common conversions: 1/2=50%, 1/3≈33.33%, 1/4=25%, 1/5=20%, 1/6≈16.67%, 1/8=12.5%, 1/9≈11.11%, 1/11≈9.09%.
Use memorised common conversions and benchmark fractions like 1/8, 3/8, 5/8.
Timed drill
Identify the base or invariant before you calculate.
Attempt first · Standard Example
Attempt first · CAT-Level Example
3-level practice ladder
Foundation
CAT Standard
Advanced / Hybrid
fraction–percentage fluency is foundational across cat arithmetic; no exact year/slot is asserted here.