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3 votes
Solve 4 1/4 - 2 11/20

2 Answers

6 votes
This could be solved as a group of mixed numbers, but I like to work with improper fractions more.
17/4 - 51/20
Next, you need to find a common denominator.
85/20 -51/20
When adding and subtracting fractions, you only work in the numerator, and the denominator stays the same.
34/20
Then, you just simplify.
Improper fraction: 17/10
Mixed number: 1 7/10
Decimal: 1.7
User Leasia
by
7.3k points
1 vote

4(1)/(4) - 2(11)/(20)
Change them into improper fractions by multiplying the denominator(bottom) by the whole number then adding the numerator

(17)/(4) -
(51)/(20)
You must have a common denominator
Multiply
(17)/(4) by
(5)/(5)
(85)/(20)

(85)/(20)-
(51)/(20)=
(34)/(20)
Simplify by dividing the numerator by the denominator
34÷20=
1(14)/(20)
1 (7)/(10) reduced
You answer is
1 (7)/(10)
User Yakob Abada
by
7.2k points
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