To find equivalent fractions, you need to multiply or divide the top and bottom of the fraction by the same amount. For 30/35 we can divide both top and bottom by 5 to get 6/7. This is the simplest equivalent fraction. We can then multiply top and bottom by 2 to get 12/14, or by 3 to get 18/21, or by 4 to get 24/28, and so on to find other equivalent fractions.
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3/7 30/70 300/700
21 over 35 = 3/5
Two equivalent fractions for 21/35 are: 42/70, 3/5.
4/7 - 2/5 = 6/35. To subtract (or add) fractions make both fractions equivalent fractions with the same denominator. The LCM (Lowest Common Multiple) of 7 and 5 is 35, so convert both the fractions to equivalent fractions out of 35: 4/7 = 20/35 2/5 = 14/35 The subtraction can now be done: 4/7 - 2/5 = 20/35 - 14/35 = 6/35
Some equivalent fractions of 35/49 are: 5/7 = 10/14 = 15/21 = 20/28 = 25/35 = 30/42