Question

Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero.


Steps Reasons
1. a over b plus c over d Given
2. Multiply to get a common denominator
3. ad plus cb all over bd Simplify


Fill in the missing step in the proof.
A. ac over bd
B. ad over b plus cb over d
C. a plus c all over b plus d
D. ad over bd plus cb over bd

Answer 1

,

Answer 2

idk how to do that lol

Answer 3

That is the"Steps Reasons
1. a over b plus c over d Given
2. Multiply to get a common denominator
3. ad plus cb all over bd Simplify"
i just posted it to make it easier to understand

Answer 4

okay

Answer 5

oooh I finally understand the problem

Answer 6

thank god u do cuz i dont

Answer 7

So those 4 choices are what we choose from:
Fill in the missing step in the proof.
ac over bd
ad over b plus cb over d
a plus c all over b plus d
ad over bd plus cb over bd

Answer 8

One of these is right and is what we are missing.

Answer 9

oml

Answer 10

seriously

Answer 11

smh

Answer 12

relax relaxxx

Answer 13

hold up lemme finish

Answer 14

u stated the obvious

Answer 15

i already knew that dip shi

Answer 16

BRO you didn't put it as answer choices so it looked weird

Answer 17

whatever

Answer 18

omg

Answer 19

u should knowwwww

Answer 20

MY BAD ok jeez

Answer 21

there are you happy now

Answer 22

i have like 9 more after this one

Answer 23

yo y u stop typing?

Answer 24

there we go

Answer 25

hurry up

Answer 26

type faster

Answer 27

The missing part is the last step which is simplify so the answer is ad+bc/bd. a/b+c/d simplifies to ad+bc/bd.

Answer 28

ok jeez i didn't even explain how to simplify

Answer 29

well hurry

Answer 30

:)

Answer 31

do you understand it tho

Answer 32

like what is missing?

Answer 33

idk

Answer 34

ok well i will explain

Answer 35

wait so d

Answer 36

Because the denominator is the same (db), it stays that way.

Answer 37

So then we just have the numerator or the top part of the fraction left and since the equation has a + in it, the numerator is ad+bc.

Answer 38

so the denominator stays the same cuz both the fractions were db, and the numerator just combines together.

Answer 39

do you understand?

Answer 40

i already asked if D was my answer

Answer 41

well you also asked for my explanation so.....

Answer 42

and i thank you for it

Answer 43

yep

Answer 44

so d

Answer 45

can you screenshot the answer choices plz

Answer 46

and post it here

Answer 47

yes d is right

Answer 48

i just had to see it visually sory

Answer 49

you only on question 1???????????????

Answer 50

yeah lol i have alot more

Answer 51

if your up to help

Answer 52

sure