Question

Help please <33 i’m struggling if anyone sees this please help this girl <3333

Answer 1

Answer:
`-11(15)/(28)`

Explanation:

Convert to Improper fractions

`5(1)/(4) = (21)/(4) \\2(5)/(7) = (19)/(7) \\`

Find a lowest common multiple

lcm(4,7) = 28 (7 * 4)

since they are just multiplying each other, we can cross multiply

`((21*7) - (19*4))/(4*7) = (147-76)/(28) \\= (71)/(28) \\=2(15)/(28)`

Answer 2

2 15/28

Explanation:

First we will convert both mixed fractions into improper fractions.

5 1/4 becomes 21/4

2 5/7 becomes 19/7

21/4 - 19/7 does not work, so we must make the denominator the same

147/28 - 76/28 = 71/28

Now we convert back to a mixed number:

2 15/28