SOLUTION: What is 12 3/4 ÷ 2 1/10

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: What is 12 3/4 ÷ 2 1/10      Log On


   

Question 935488: What is 12 3/4 ÷ 2 1/10
Found 3 solutions by josgarithmetic, TimothyLamb, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
(1)Change to improper fractions
(2)Multiply the dividend by the reciprocal of the divisor
(3)Simplify


%2812%2B3%2F4%29 DIV BY %282%2B1%2F10%29

%2848%2B3%29%2F4 DIV BY %2820%2B1%29%2F10

51%2F4 DIV BY 21%2F10

%2851%2F4%29%2810%2F21%29

%283%2A17%2A2%2A5%29%2F%282%2A2%2A3%2A7%29

%28cross%283%29%2A17%2Across%282%29%2A5%29%2F%282%2Across%282%2A3%29%2A7%29

highlight_green%2885%2F14%29
'
highlight%286%261%2F14%29

Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
a = 12 3/4 = 48/4 + 3/4 = 51/4
b = 2 1/10 = 20/10 + 1/10 = 21/10
---
a/b = (51/4)/(21/10)
a/b = (51/4)*(10/21)
a/b = 510/84
a/b = (255*2)/(42*2)
a/b = 255/42
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

What is 12 3/4 ÷ 2 1/10
12%263%2F4 ÷ 2%261%2F10

51%2F4 ÷ 21%2F10 -------------- Converting mixed numbers to IMPROPER FRACTIONS

%2851%2F4%29+%2A+%2810%2F21%29 ------------ Changing the DIVISION SYMBOL to MULTIPLICATION, and INVERTING the DIVISOR

%2817cross%2851%29%2F2cross%284%29%29+%2A+%285cross%2810%29%2F7cross%2821%29%29 ---- Cancelling numerators and denominators with GCFs

85%2F14_____highlight_green%28highlight_green%286%261%2F14%29%29

===================

Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com.

Further help is available, online or in-person, for a fee, obviously. 



For FREE info and answers to questions about the ASVAB exam, the NYS 3 – 8 city/state wide exams,GENERAL

MATH and HOMEWORK QUESTIONS, or MATH QUESTIONS related to the Regents Integrated Algebra, 

Regents Geometry, Regents Algebra 2/Trigonometry, SHSAT, COOP/HSPT/TACHS, PSAT, SAT, ACT, SSAT/ISEE,

GRE, CLEP, and the TASC/GED, you can visit: http://asvabstudyzone.freeforums.net/.