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28 votes
28 votes
Showing all necessary working out, evaluate 7/10 - 1/4

User Dick Lampard
by
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1 Answer

17 votes
17 votes

Answer:


(9)/(20)

Explanation:


(7)/(10)-(1)/(4)

Find lcm : 20


=(14)/(20)-(5)/(20)


\mathrm{Apply\:the\:fraction\:rule}:\quad (a)/(c)-(b)/(c)=(a-b)/(c)


=(14-5)/(20)


\mathrm{Subtract\:the\:numbers:}\:14-5=9


=(9)/(20)

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User Kolky
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