Question

the value of 1/20+1/30+1/42+1/56+1/72+1/90is?

Answer 1

0.15
Hope this helps you friend
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Answer 2

Answer:

Step-by-step explanation:

1/20+1/30+1/42+1/56+1/72+1/90

Lcm of 20,30,42,56,72&90 is2^3*5*3*7*7*17*3=2,99,880

After lcm u can substitute by lcm method.

Or

Ucan divide each and write answer.

i.e.

0.05+0.03+0.02+0.01+0.01+0.01=0.13

Therefore,it is 0.13