A girl completed her work in 3 days. On the first day she did 2/5 of the work and on the second day she did 3/7 of her work. How much work did she do on third day?
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hah sorry gjdui soon Jack so so so so Tanya
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Answer:
76/35
Explanation:
at first we add to 2/5 + 3/7
lcm of 5 , 7 is 35
then
multiply 2 / 5 from 7 both sides
multiply 3/7 from 5 both sides
then answer
14 / 35 + 15 / 35
29 / 35
then subtract 29 /35 from 3 / 1
3/ 1 - 29 / 35
lcm of 1 , 35 is 35
then
multiply 3/1 from 35 both sides
multiply 29 / 35 from 35 both sides
then answer
105 / 35 - 29 /35
then
76/35
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