Rules
When adding/subtracting fractions, do you need common denominators?
Yes
1/2 + 3/4 =
1 1/4
4/5*10/18=
4/9
1.46 + 1.021 =
2.481
10.8 divide 2.4 =
4.5
When multiplying decimals, do the decimal points need to line up?
No
5/6 - 5/8=
5/24
1 3/4 * 5 =
8 3/4
12.5 + 2.03 + 0.6 =
15.13
9 divide 0.6 =
15
When dividing decimals, which number do you move the decimal point FIRST? Divisor, Dividend, or Quotient
the DIVISOR
1/5 + 1/3=
8/15
5 1/2 divide 1 3/4=
3 1/7
4.52 - 2.001 =
2.519
21.2 x 2.3 =
48.76
When you divide fractions, what do you need to do?
Keep-Change-Flip
2 3/5 + 3 1/2=
6 1/10
9 divide 1 1/3 =
6 3/4
14-1.002=
12.998
(3.6)(4.31)=
15.516
When your fractions are mixed numbers, should you convert them into improper fractions BEFORE you multiply or divide?
Yes
1/3 + 2/6 + 3/5=
1 4/15
16/9 divide 3/4=
2 10/27
192 - 76.0034 =
115.9966
9.07 divide 0.2=
45.35