4(5/6) - 15(2/45) - 2
= 20/6 - 30/45 - 2
Simplify the fractions:= 10/3 - 2/3 - 2
Combine like terms:= 8/3 - 2
Convert 2 to a fraction with a denominator of 3:= 8/3 - 6/3
Subtract the fractions:= 2/3
Therefore, when a = 5/6 and b = 2/45, the expression 4a - 15b - 2 is equal to 2/3.
4(5/6) - 15(2/45) - 2
= 20/6 - 30/45 - 2
Simplify the fractions:
= 10/3 - 2/3 - 2
Combine like terms:
= 8/3 - 2
Convert 2 to a fraction with a denominator of 3:
= 8/3 - 6/3
Subtract the fractions:
= 2/3
Therefore, when a = 5/6 and b = 2/45, the expression 4a - 15b - 2 is equal to 2/3.