Find the multiplicative inverse of 3 by 4 minus 5 by 7

asked Sep 9, 2021 210k views

2 votes

by Oevna

5.6k points

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5 votes

Yup it equals 28 fir this one

Wooff answered Sep 10, 2021

by Wooff

6.0k points

5 votes

Answer:

Explanation:

(3)/(4)-(5)/(7)

Least Common Denominator of 4 & 7 is 4 * 7 = 28

$(3)/(4)-(5)/(7)=(3*7)/(4*7)-(5*4)/(7*4)\\\\\\=(21)/(28)-(20)/(28)\\\\\\=(21-20)/(28)\\\\\\=(1)/(28)$

Multiplicative inverse of
(1)/(28) is
(28)/(1) = 28

Kevlened answered Sep 15, 2021

5.4k points

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