Simplify value of given expression is 4.
Using Prime factorisation H.C.F is 2 .
Factor of 60 is 60 = 2×2×3×5 and highest prime factor of 420 is 7..
Prime factorzation : is the process of finding prime numbers, which are multiplied together to form an Original number.
Simplification follow the "BODMAS" rule for solution where,
B --->brackets, O-->Order of powers,D--> division , M------> Multiple,A---> addition , S---> substraction,
expression, 1/9 of √81 × √16
a of b means a multiply b . Solution of expression is 1/9 × 9× 4 = 4 .
H.C.F means highest common factor,
factor of 12 = 2×2× 3 , 18 = 2×3×3 , 56= 2×2×2×7
H.C.F of { 12,18,56 } = 2
Factor of 60 is 60 = 2×2×3×5 .
Prime factor of 420 = 2²×3×5×7
then highest prime factor of 420 is 7.
Hence, simplification solution is 4 , H.C.F of given numbers is 2, factors of 60 are 2²×3×5 and highest prime factor of 420 is 7 .
To learn more about Prime factorzation, refer:
https://brainly.com/question/18187355
#SPJ4
