To convert from a **fraction to a percentage**, make the denominator of the fraction 100 by multiplying or dividing the top and bottom of the fraction by **the same number**.

To convert from a **fraction to a decimal**, make the denominator 10, 100 or 1000 by multiplying or dividing the top and bottom of the fraction by **the same number **and use knowledge of place value. **e.g. **3/10 = 0.3, 17/100 = 0.17, etc.

To convert from a **percentage to a decimal**, write as a fraction and use knowledge of place value.

To convert from a **decimal to a fraction**, use knowledge of place value to write as a fraction over 10, 100 or 1000, then simplify, **e.g.** 0.12 = 12/100 = 6/50 = 3/25.

To convert from a **decimal to a percentage**, write the decimal as a fraction over 100 then write as a percentage, **e.g. **0.47 = 47/100 = 47%.