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1/3 of 21 = 71/3 of 21 = 71/3 of 21 = 71/3 of 21 = 7
The Least Common Multiple (LCM) for 3 21 is 21.
No but 21 is a multiple of 3 because 7*3 = 21
-63 / -3 = 21
Yes it is 1 1/7. 24 = 21 + 3, so take it as (21 + 3)/21 = 21/21 + 3/21. So 21/21 =1 and 3/21 = 1/7.