Question

Is $87\frac{13}{19}$ is in its lowest form?

• A. yes
• B. no

Answer 1

The correct option is A yes

$87\frac{13}{19}$
Fractional part: $\frac{13}{19}$
Factors of 13: 1, 13
Factors of 19: 1, 19
GCF- 1

As greatest common factor of two numbers is 1, hence the mixed number is in its lowest form.