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Sagot :
Dissimilar fractions are fractions that have different denominators.
Example:
2/4 , 3/5, 7/8
1/3 + 3/4
(1) Find for the least common multiple (LCM) of the denominators.
LCM of 3 and 4 = 12
(2) Make another fraction by putting the LCM in the denominator and leaving the numerator blank.
⇒ ---------
12
(3) Divide the LCM by the denominator of the first and second fraction, and then multiply the answer to the numerator of the first and second fraction respectively.
1/3 + 3/4
12 ÷ 3 = 4 ⇒ 4 × 1 = 4
12 ÷ 4 = 3 ⇒ 3 × 3 = 9
The answer will be our new numerator, well of course, respectively separated by the plus or the addition sign.
4 9
------- + -------
12 12
(4) Now that they already have the same denominator, add them already.
4/12 + 9/ 12 = 13/12
The answer is 13/12.
--
--Have a fabulous Friday!--
Example:
2/4 , 3/5, 7/8
1/3 + 3/4
(1) Find for the least common multiple (LCM) of the denominators.
LCM of 3 and 4 = 12
(2) Make another fraction by putting the LCM in the denominator and leaving the numerator blank.
⇒ ---------
12
(3) Divide the LCM by the denominator of the first and second fraction, and then multiply the answer to the numerator of the first and second fraction respectively.
1/3 + 3/4
12 ÷ 3 = 4 ⇒ 4 × 1 = 4
12 ÷ 4 = 3 ⇒ 3 × 3 = 9
The answer will be our new numerator, well of course, respectively separated by the plus or the addition sign.
4 9
------- + -------
12 12
(4) Now that they already have the same denominator, add them already.
4/12 + 9/ 12 = 13/12
The answer is 13/12.
--
--Have a fabulous Friday!--
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