perform the indicated operation.express your answer in simplest form.
1) 5 2/4+ 2 5/8
2) 10 1/2+ 5 1/4
3) 8 3/4+ 6 1/5
4) 20 3/6+ 12 3/4
5) my mother bought 4 2/3 kg of beef, 1 1/4 kg of pork, ang 3 2/6 kg of chicken.how many kilograms of meat did she buy?
1) 5 2/4+ 2 5/8
2) 10 1/2+ 5 1/4
3) 8 3/4+ 6 1/5
4) 20 3/6+ 12 3/4
5) my mother bought 4 2/3 kg of beef, 1 1/4 kg of pork, ang 3 2/6 kg of chicken.how many kilograms of meat did she buy?
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Answer:
1) 15/4
2) 25/4
3) 36/5
4) 19
5) 47/12 kilograms of meat in total
Step-by-step explanation:
>Let's turn mixed number to improper fraction,
>then lets identify the common denominator and ,
>proceed to calculation
1) 5 2/4+ 2 5/8
5 2/4 = 10/4 = 5/2
2 5/8 = 10/8 = 5/4
5/2 + 5/4
LCD = 4
(4÷2) x 5 = 10/4
(4÷4) x 5 = 5/4
10/4 + 5/4 = 15/4
2) 10 1/2+ 5 1/4
10 1/2 = 5
5 1/4 = 5/4
LCD = 4
(4÷1) x 5 = 20/4
(4÷4) x 5 = 5/4
20/4 + 5/4 = 25/4
3) 8 3/4+ 6 1/5
8 3/4 = 24/4 = 6
6 1/5 = 6/5
LCD = 5
(5÷1) x 6 = 30/5
(5÷5) x 6 =6/5
30/5 + 6/5 = 36/5
4) 20 3/6+ 12 3/4
20 3/6 = 60/6 = 10
12 3/4 = 36/4 = 9
10 + 9 = 19
5) 4 2/3 + 1 1/4 + 3 2/6
4 2/3 = 8/3
1 1/4 = 1/4
3 2/6 = 1
LCD = 12
(12÷3) x 8 = 32/12
(12÷4) x 1 = 3/12
(12÷1) x 1 = 12/12
32/12 + 3/12 + 12/12 = 47/12
I hope this will help :)
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