227k views
3 votes
Find the difference. Write your answer in simplest form.
11 7/16 - 4 7/12=

1 Answer

2 votes

Answer:

163

——— = 3.39583

48

Explanation:

47

Simplify ——

12

Equation at the end of step

1

:

117 47

——— - ——

16 12

STEP

2

:

117

Simplify ———

16

Equation at the end of step

2

:

117 47

——— - ——

16 12

STEP

3

:

Calculating the Least Common Multiple

3.1 Find the Least Common Multiple

The left denominator is : 16

The right denominator is : 12

Number of times each prime factor

appears in the factorization of:

Prime

Factor Left

Denominator Right

Denominator L.C.M = Max

{Left,Right}

2 4 2 4

3 0 1 1

Product of all

Prime Factors 16 12 48

Least Common Multiple:

48

Calculating Multipliers :

3.2 Calculate multipliers for the two fractions

Denote the Least Common Multiple by L.C.M

Denote the Left Multiplier by Left_M

Denote the Right Multiplier by Right_M

Denote the Left Deniminator by L_Deno

Denote the Right Multiplier by R_Deno

Left_M = L.C.M / L_Deno = 3

Right_M = L.C.M / R_Deno = 4

Making Equivalent Fractions :

3.3 Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example : 1/2 and 2/4 are equivalent, y/(y+1)2 and (y2+y)/(y+1)3 are equivalent as well.

To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.

L. Mult. • L. Num. 117 • 3

—————————————————— = ———————

L.C.M 48

R. Mult. • R. Num. 47 • 4

—————————————————— = ——————

L.C.M 48

Adding fractions that have a common denominator :

3.4 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

117 • 3 - (47 • 4) 163

—————————————————— = ———

48 48

Final result :

163

——— = 3.39583

48

User Akshin Jalilov
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories