SOLUTION: how do i solve x+3/4= 4 2/5?

Question 81601This question is from textbook Preparation fot Algebra
: how do i solve x+3/4= 4 2/5? This question is from textbook Preparation fot Algebra

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
X+3/4=4 2/5 FIRST YOU NEED TO CONVERT THE MIXED FRACTION TO AN IMPROPER FRACTION THUS:
4 2/5=(4*5+2)/5=(20+2)/5=22/5
X+3/4=22/5
X=22/5-3/4 NOW YOU NEED TO FIND A COMMON DENOMINATOR TO COMBINE THE 2 FRACTIONS.
A COMMON DENOMINATOR THAT 4 & 5 ARE EVENLY DIVIDED INTO: 4*5=20
X=(22*4)/20-(3*5)/20
X=88/20-15/20
X=73/20 ANSWER.
PROOF
73/20+3/4=22/5 AGAIN FINDING A COMMON DENOMINATOR YOU HAVE:
73/20+(3*5)/20=(22*4)/20
73/20+15/20=88/20
88/20=88/20

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