3/5 * 1/7 - 1/21 * 5/2 + 3/5 * 1/6
solve by using properties
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Step-by-step explanation:
3/5 * 1/7 - 1/21 * 5/2 + 3/5 * 1/6
= 3/35 - 5/42 + 3/30
= 3/35 - 5/42 + 1/10
= 3/35 - 2100/420
= 3/35 - 10/2
= 3/35 - 5
= 3-165/5
= -162/5
i think this is the correct answer
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