Fraction
FractionIt is a part of a whole.
Example :
In the given figure out of 4 parts,1 part is shaded The shaded part represents one-fourth of the whole piece. One-fourth is written as ¼ .
Unshaded parts are 3 out of 4. Therefore, unshaded part represent three-fourth of the whole piece. Three-fourth is written as ¾ .
More examples :
1) The fract-ion 7/10 can be written in word as "seven tenth" which means 7 parts out of 10 equal parts, in which the whole is divided. In the fract-ion 5/3, 5 is the numerator and 3 is the denominator.
2) The fract-ion 3/7 can be written in word as "three-seventh" which means 3 parts out of 7 equal parts, in which the whole is divided. In the fract-ion 3/7, 3 is the numerator and 7 is the denominator.
Whatever number on the top is called Numerator and the number in the bottom is called Denominator .
Example :
1) What frac-tion of a day is 9 hours?
Solution :
One day = 24 hours
9 hours of a day = 9/24
9 hours out of 24 hours, hence 9 hours is 9/24 parts of a day.
2) Find 4/5 of a collection of 10 balloons.
Solution :
4/5 means 4 parts out of 5. So first we find 1 part out of 5 and then multiply by 4.
For 1/5 , we have divide 10 by 5. So, 10 ÷ 5 = 2
∴ For 4/5, we have 2 x 4 = 8 balloons.
Thus, 8 balloons is 4/5 of 10 balloons.
3) What fract-ion of an hour is 35 minutes?
Solution :
1 hour = 60 min.
∴ 35 min = 35 / 60
i.e. 35 minutes out of 60 minutes. Hence, 35 minutes is 35 / 60
parts of day.
Fraction
• Fraction
• Types of Fract-ions
• Conversion of improper to mixed-fract-ions
• Equivalent Fract-ions
• Fract-ions in Simplest form
• Like and Unlike-Fract-ions
• Add - fract-ions
• Subtraction of fract-ions
• Multiplying-Fract-ions
7th grade math
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