What should be added to 9 4/7 to get 16?
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Answer:
Take x fraction added 9th time into 4/7
4/7 + 9x =16
(4 + 63x )/ 7 = 16
4 + 63x =16 × 7 = 112
63 x = 112 - 4= 108
X = 108/ 63
X = 12/7
Tally the answer-
4/7+(12/7 + 12/7+12/7+12/7+12/7+12/7+12/7+12/7+12/7) = 16
Or
4/7 + 12/7 × 9 =?
= 4/7 + 108/7
= 4+108/7
= 112/7
=16 ✔️
So ans is 12/7
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