Give the Least Common Denominator (LCD) of the following pairs of dissimilar
fractions. Write your answers on your answer sheet.
1) 1/3 and 1/2
2) 1/8 and 5/6
3) 7/8 and 1/4
4) 2/3 and 3/4
5) 2/5 and 3/4
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Give the Least Common Denominator (LCD) of the following pairs of dissimilar
fractions. Write your answers on your answer sheet.
1) 1/3 and 1/2
2) 1/8 and 5/6
3) 7/8 and 1/4
4) 2/3 and 3/4
5) 2/5 and 3/4
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Answer:
1. 6
2. 24
3. 8
4. 12
5. 20
Step-by-step explanation:
since all fractions are in their simplest form, the LCD we're looking for is the LCM of the denominators.
1. 1/3 & 1/2 - already in its simplest form
find LCM:
3 = 3,6
2 = 2,4,6
LCD = 6
2. 1/8 & 5/6 - already in its simplest form
find LCM:
8 = 8,16,24
6 = 6,12,18,24
LCD = 24
3. 7/8 & 1/4 - already in its simplest form
find LCM:
8 = 8
4 = 4,8
LCD = 8
4. 2/3 & 3/4 - already in its simplest form
find LCM:
3 = 3,6,9,12
4 = 4,8,12
LCD = 12
5. 2/5 & 3/4 - already in its simplest form
find LCM:
5 = 5,10,15,20
4 = 4,8,12,16,20
LCD = 20