# How do you add #-9/8+7/4#?

##### 2 Answers

#### Explanation:

WE have denominators

=

=

=

=

#### Explanation:

Fraction

Size indicator is how many of what you are counting to make a whole 1 of something.

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We need to add/subtract counts but we can only do this 'directly' if the 'size indicators' (denominators) are the same.

Multiply by 1 and you do not change the intrinsic value. However, 1 comes in many forms. So we can change the way something looks but not change its intrinsic value.

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Given:

Change the order:

This is the same in value as:

But write 1 as