Q: What is the average of 21 35 and 49?

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21, 28, 35, 42, 49

Factors of 21 are 3 and 7 (21=3x7). Factors of 35 are 5 and 7 (35=5x7). Factors of 49 are 7 and 7 (49=7x7).

The GCF is 7.

77－49＝28÷2＝〔14〕 21＋14＝35 35＋14＝49 49＋14＝63 63＋14＝77

735

It is: (21+35)/2 = 28

1, 3, 7, 21 1, 5, 7, 35 1, 7, 49

They are: 21, 28, 35, 42 and 49

21, 28, 35, 42, 49

49

735

It is: 7

1 and 7

21, 35, 49, 63, 77.

21, 28, 35, 42, 49

The GCF is 7.

The GCF is 7.

The GCF is 7.

The GCF is 7.

The GCF of 21, 35, and 49 is 7.The GCF is 7.Factors of 21: 1, 3, 7, 21Factors of 35: 1, 5, 7, 35Factors of 49: 1, 7, 49GCF (21, 35, 49) = 7

35

Some equivalent fractions of 35/49 are: 5/7 = 10/14 = 15/21 = 20/28 = 25/35 = 30/42

The GCF is 7.

The common factors are: 1, 7

They are: 7 14 21 28 35 42 and 49

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