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can 21 over 42 be reduced

Sagot :

Yes 21 over can be reduced to  1/2
Indeed it can be! They both share a factor of 21, so you can divide both numbers by 21, and you will get 1/2!

21: 1, 3, 7, 21
42: 1, 2, 3, 6, 7, 14, 21, 42