Common fractions

Addition and Subtraction of Common Fractions

When you eat two-thirds of a pizza and your friend eats three-quarters (three-fourths) of the same size pizza, what is the total pizza you two have eaten? To calculate that, we need to first determine the LCD (lowest common denominator) of the thirds and the fourths. The LCD of that is 12. Thus, use equivalent…

Maths in English | Grade 7 maths

What are Percentages

To understand what percentages are, think of it in terms of “per cent”. The “per” means “out of” and the “cent” refers to one hundred. So, “percentage” means out of a hundred. Percentages can be written as common fractions. For the example of 35%, we can write it as 35 out of 100 and then…

$Common fractions to percentages to decimal numbers$

Maths in English | Grade 8 - 9 maths

Common fractions to percentages to decimal fractions

What do common fractions, percentages, and decimal fractions have in common? They can all be converted into one another. When converting a common fraction, such as three quarters, into a percentage, we have to make the denominator equal to 100. How do we do that? Multiply the current denominator of fourths with 25 so that…

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