Q: Is 5 over 9 and 15 over 28 equivalent to 25 over 45?

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8/9 × 15/28 × 21/25 = (8×15×21)/(9×28×25) = 2520/6300 = (2×1260)/(5×1260) = 2/5

14 over 15

28/50

15/28 is the simplest form and, by definition, the simplest form must be equivalent to other forms of the ratio.

41/7 - 25/28 = 164/28 - 25/28 = 139/28 = 427/28

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28/15 = 113/15

8/9 × 15/28 × 21/25 = (8×15×21)/(9×28×25) = 2520/6300 = (2×1260)/(5×1260) = 2/5

14 over 15

7/25

28/50

28/30

15/28 is the simplest form and, by definition, the simplest form must be equivalent to other forms of the ratio.

10/28, 15/42

The Least Common Multiple (LCM) for 25 28 15 is 2,100.

41/7 - 25/28 = 164/28 - 25/28 = 139/28 = 427/28

14/30 or 28/60 or 56/120...

fractions which are equivalent to 3 over 7 = 6/14, 9/21, 12/28, 15/35,...