Unformatted text preview: ™s right 2. Since
you are looking for
1x 2 =
equivalent fraction
5 x 2 = 10 theyou know the top
1
1 number must also be
 10
10
multiplied by 2. To Subtract Fractions With To Subtract Fractions With Unlike Denominators Find the equivalent fractions for 1/5 & 1/10 with 10 as the denominator.
1 x 2 = 2 To find the top2number
just multiply x 1 to
5 x 2 = 10 get your equivalent
1
1
fraction.  10 10 To Subtract Fractions With To Subtract Fractions With Unlike Denominators Now just add the numerators. 1x 2 = 2
5 x 2 = 10
1
1
 10
10
1
10 Remember when
subtracting
fractions you never
subtract the
denominators. Subtract these Fractions
Subtract these Fractions 1
2
1
8 8
8 Use the short
cut to find the
Least Common
Denominator
(LCD). Subtract these Fractions
Subtract these Fractions 1
2x 4 = 8
1
 8 x 1 =8 Now find the
equivalent
fractions for
1/2 & 1/8. Ask what do you multiply 2 by to get 8
and what do you multiply 8 by to get 8. Subtract these Fractions
Subtract these Fractions 1x 4 =
2x 4 = 8
1x 1 =
 8 x 1 =8 Since you are
writing equivalent
fractions, now...
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 Fall '11
 BrotherRaymond
 Fractions, Elementary arithmetic

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