answersLogoWhite

0

First note that 4.2 = 4.2/1; then multiply both numerator and denominator of this fraction by 10 to yield 42/10. This can be reduced to lower terms by dividing both numerator and denominator by 2 to yield 21/5. Since the integral factors of 21 are 7 and 3 while 5 is itself a Prime number, 21/5 can not be further reduced and is the answer sought.

User Avatar

Wiki User

12y ago

What else can I help you with?