How do you evalaute #\frac { 3} { 5} \div \frac { 12} { 5} \cdot - 4#?

2 Answers
Jacq
Oct 4, 2017

#3/5# #div# #12/5# #*-4 =-1#

Explanation:

When dividing two fractions, you can flip the second fraction around and thus change the division to a multiplication. You can then simplify the expression by cancelling out numbers.

#3/5# #div# #12/5# #*-4#

#= 3/cancel(5) * cancel(5)/12 *-4#

#= 3 * 1/12 *-4#

#= -cancel(12)*1/cancel(12)#

#=-1#

sankarankalyanam
Oct 4, 2017

#-1#

Explanation:

#=((3/cancel5)(cancel5/12))*(-4) #

#=(3/12)*(-4)#

#=(1/cancel4)*(-cancel4) = -1#

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