Find the diffrence. 4 2/5 - 1 7/10 = ?

asap! could you me with more?

find the diffrence. 5 2/3 - 2 1/2 = ?

find the diffrence. 17 - 2 1/3 = ?

1. 9/10

2. 7/3

3. 49/3

Step-by-step explanation:

assuming all the / mean fractions (sorry i'm not sure)

first question:

4 and 2/5 is 22/5 (which is 44/10) and 1 and 7/10  is 17/10 so 44/10 - 17/10 = 27/10 (mixed number: 2 7/10)

second question:

5 and 2/3 is 17/3 (34/6) and 2 and 1/2 is 5/2 (15/6) so 34/6 - 15/6 = 19/6 (mixed number: 3 1/6)

third question:

17 (51/3) and 2 1/3 is 7/3 so 51/3 - 7/3 = 44/3 (mixed number: 14 2/3)

i think these are the answers, hope these help :D

u what ?

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: