What is a fraction written in the form a/b

A simple fraction (also known as a common fraction or vulgar fraction) is a rational number written as a/b or , where a and b are both integers. As with other fractions, the denominator (b) cannot be zero.

the answer is that b can't be zero

2

step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true