Multiples 21: 1,3,7,21Multiples 49: 1,7,49
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The multiples of 7 from 7 to 100 are ...... 0, 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105.
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98.
21, 42, 63 and so on.
49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
There are an infinite number of fractions that are all equal to 21/49 .The one in lowest terms (simplest form) is 3/7.