Answer:
Step-by-step explanation:
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
LCD(9/4, 5/10) = 20
Complete the multiplication and the equation becomes
The two fractions now have like denominators so you can subtract the numerators.
Then:
This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 35 and 20 using
GCF(35,20) = 5
The fraction
is the same as
7 ÷ 4
Therefore:
Apply the fractions formula for subtraction, to
and solve
Reduce by dividing both the numerator and denominator by the Greatest Common Factor GCF(70,40) = 10
Convert to a mixed number using
long division for 7 ÷ 4 = 1R3, so
Therefore: