Fractions, Decimals & PercentsATI TEAS 7 cheat sheet

Convert & compute

10 key facts 2 practice questions Reviewed Oct 2026

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Convert

Fraction → decimal: divide top ÷ bottom
Decimal → percent: move point 2 right (×100)
Percent → decimal: move point 2 left (÷100)
0.6 = 6/10 = 3/5 = 60%

Add / Subtract Fractions

Find a common denominator first
3/4 + 1/8 = 6/8 + 1/8 = 7/8
Simplify by dividing by the GCF

Percent

part ÷ whole × 100 = percent
% OF a number: change % to a decimal, then multiply
25% of 80 = 0.25 × 80 = 20

Key takeaway

Convert & compute

Before you read

Test yourself first: 2 questions

Question 1 of 2

Which fraction is larger: 2/3 or 3/5?

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