Respuesta :

answer:

[tex]\frac{22}{15}[/tex] or 1 [tex]\frac{7}{15}[/tex]

step-by-step explanation:

a common denominator between 3 and 5 is 15

first to get our denominator in the fraction [tex]\frac{2}{3}[/tex] to 15 we need to multiply by 5 so 2 × 5 = 10 and 3 × 5 = 15

this makes our new fraction [tex]\frac{10}{15}[/tex]

now we need to get our denominator in the fraction [tex]\frac{4}{5}[/tex] to 15 so we need to multiply by 3 so 4 × 3 = 12 and 5 × 3 = 12

this makes our new fraction [tex]\frac{12}{15}[/tex]

our new equation with common denominators is now [tex]\frac{10}{15}[/tex] + [tex]\frac{12}{15}[/tex] = coming out to be [tex]\frac{22}{15}[/tex]

to make this into a mixed fraction we know 22 only goes into 15 once with 7 left over so our mixed fraction is 1 [tex]\frac{7}{15}[/tex]

-10/15 + -12/15 = -1 6/15. -2/3 becomes -10/15 when multiplied by 5. -4/5 becomes -12/15 when multiplied by 3.