Question

Medal
Simplify.

2/5 + 7/10 − 2/7

Answer 1

ok first you have to find the common denominator

Answer 2

lets go with 70

Answer 3

how would you do that

Answer 4

all three of the numbers go into 70

Answer 5

ok how many times does 5 go into 70

Answer 6

14 times

Answer 7

ok so multiply that by 2 since the numerator is 2

Answer 8

28

Answer 9

ok so 2/5 becomes 14/70

Answer 10

now how many times does 10 go into 70

Answer 11

7

Answer 12

ok now 7*7

Answer 13

49

Answer 14

so 7/10 becomes 49/70

Answer 15

now how many times does 7 go into 70

Answer 16

10

Answer 17

ok now 10*2

Answer 18

20

Answer 19

ok so now 20/70
so you have 14/70 + 49/70 - 20/70
can you solve that

Answer 20

how do you solve that

Answer 21

add 14 + 49
then subtract the sum by 20
leave the denominator

Answer 22

43

Answer 23

ok so your answer is 43/70
can that be simplified

Answer 24

1 27/70

Answer 25

no how?
is there a number that can be divided into 43 and 70?

Answer 26

1

Answer 27

anything other than that

Answer 28

2

Answer 29

what is 43/2

Answer 30

21.5

Answer 31

look 43 cannot be divided by anything except by 43 and 1

Answer 32

so 43/70 is your final answer

Answer 33

so the answer is 43/70?

Answer 34

yea

Answer 35

thank you :)

Answer 36

your welcome