Question

in the pattern 1/3+1/4+1/5+____which fraction makes the sum greater than 1 ( first time)? Explain.​

Answer 1

Answer:

1

3

+

1

4

+

1

5

=

20

+

15

+

12

60

=

47

60

<

1

According to the pattern, next number will be

1

6

∴

1

3

+

1

4

+

1

5

+

1

6

=

40

+

30

+

24

+

20

120

=

114

120

<

1

Now according to the pattern, next number after

1

6

i

s

1

7

∴

1

3

+

1

4

+

1

5

+

1

6

+

1

7

=

280

+

210

+

168

+

140

+

120

840

=

918

840

>

1

Hence

1

7

makes the sum greater than 1(first

Answer 2

Answer:

1/7

Step-by-step explanation:

first the numbers itself

1/3+1/4+1/5 take LCM of these

20+15+12/60

47/60 < 1

the another number

1/3+1/4+1/5+1/6

take LCM of these

20+15+12+10/60

57/60 < 1

the another number

1/3+1/4+1/5+1/6+1/7

120+105+84+70+60/420

459/420

1/7 answer