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Transcript
My pieorific book
Student 1
What are fractions
• Part of whole.
• 3/4
What is a numerator and
denominator
A numerator is the top number of a fraction , the part.
A denominator is the bottom number in a fraction, how many parts
there are.
numerator
denominator
What is a common
denominator
• A common denominator is when
the two denominators are the
same.
¾ and ¼ 4 is the common
denominators.
What an improper
fraction is
• An improper fraction is when
the numerator is larger then the
denominator.
•
14/6
What a mixed number is
• A mixed number is fraction
that is more then a whole.
• Examples: 1 5/6, 3 1/2
What is a Ratio
• Two numbers that are normally
expressed as the quotient of
one divided by the other.
• The ratio to 6 to 10 6:10 or 6/10
What reciprocal is
• Reciprocal is when you turn the
divisor up side down.
• Example: The reciprocal of 2/3
is 3/2
How you find
Equivalent fractions
• The best way to think about equivalent
fractions is that they are fractions that
have the same value. Equivalent fractions
represent the same part of a whole. For
example, if we cut a pie exactly down the
middle, into two equally sized pieces, one
piece is the same as one half of the pie.
And if another pie (the same size) is cut
into 4 equal pieces, then two pieces of that
pie represent the same amount of pie that
1/2 did. So we can say that 1/2 is are
equivalent (or equal) to 2/4.
Adding fractions
• ADDING FRACTIONS
• 1. FIND COMMON
DENOMINATOR
• 2. Add the numerators
• 3. Add the whole numbers
• 4. Reduce to lowest terms
Subtracting fractions
• 1. Find the common
denominator
• 2.Subtract the numerators
• 3.Subtract the whole numbers
• 4. Reduce to lowest terms
Multiplying fractions
• 1. Multiply the numerators
• 2. Multiply the denominators
• 3. Reduce to lowest terms
Dividing fractions
• 1.Both the dividend and the divisor
have to be fractions
• 2. change the mixed numbers to
improper fractions and change whole
numbers to improper fractions
• 3.Multiply the reciprocal by the
divisor
• 4.Reduce to lowest termst
conclusion
• 1.In recipes
• 2.ordering meet