Adding Fractions
1/2+1/2
1
1/2-1/2
0
45xx2
90
3+5xx2
13
Give the standard form of this number.
572
572
Do these have common denominators?
1/2+1/8
No, we can't add them until we change at least one to an equivalent fraction.
Do these have common denominators?
1/2-1/8
47+89
136
5 + 7 × 4 − (11 + 6)
16
Give the standard form of this number: one half.
0.5
3/5+1/2
11/10
3/5-1/2
1/10
27xx35
945
12 + (11 × 5 − 5) + 10
72
Give the written form of this number
400+40+4
Four-hundred forty four.
2/3+3/8
25/24
2/3-3/8
7/24
6283xx2
12566
25-(3xx2+1)+6
24
Write this in expanded form.
Eight thousand four hundred thirty five.
8000 + 400 + 30 + 5
7/12+1/7
61/84
7/12-1/7
37/84
12345/15
823
12+10^2-5xx7
77
Write this number in expanded form.
Three thousand four hundred and twenty-five hundredths.
3000+400+2/10+5/100