You find both of the denominators of both of the fractions Greatest Common Denominator. Then you multiply the numerator by the number you got from the denominator to the greatest common denominator.
How do you add fractions?
100
You multiply them straight across and then simplify.
How do you multiply fractions?
100
You line the decimals up and then add them up.
How do you add decimals?
100
You move move the decimal two places to the right.
How do you change a decimal to a percent?
200
You put the last numbers place value as the denominator and then you simplify the fraction.
How do you change decimals to fractions?
200
You find the Least Common Denominator of the denominators of the two fractions. Then you multiply the numerator by the number you got from the denominator to the least common denominator.
How do you subtract fractions?
200
You keep the first fraction, change the division sign to a multiplication sign, and keep the last fraction. Then you multiply straight across and simplify it.
How do you divide fractions?
200
You line the decimals up and then subtract them.
How do you subtract decimals?
200
You move the decimal two places to the left.
How do you change a percent to a decimal?
300
0.4
What is 2 over 5 as a decimal?
300
2 over 15
What is 4 over 5 - 2 over 3?
300
1 over 5
What is 2 over 5 times 1 over 2?
300
You just multiply them regularly. ( you dont have to line the decimals up )