The expression for this type of problem is 6 + (42 / 21). Then, evaluate that by the order of operations to obtain:
6 + 2 = 8
8
3 x 7 = 21
21. You put them in numerical order and then find the center one.
21 over 40 is irreducible as a fraction expression. 21 over 40 is 0.525 as a decimal expression.
307
8
3 x 7 = 21
a numerical expression is just an expression without any equal or unequal signs, e.g. (a+2b)c or 5x-6y an equation shows two expressions with an equal sign, e.g. (a+2b)c = 53 or 5x-6y = 3k2-7k+21
21000000000
21. You put them in numerical order and then find the center one.
21 over 40 is irreducible as a fraction expression. 21 over 40 is 0.525 as a decimal expression.
10t - 21, possibly. Or (-10t + 21)-1
21
307
The GCF of 9 and 21 is 3.
-16
4 and 9 21 and 32