We will discuss here about division of a fractional number by a fractional number.
Now, let us consider the division \(\frac{2}{3}\) ÷ \(\frac{1}{3}\)
= \(\frac{\frac{2}{3}}{\frac{1}{3}}\)
= \(\frac{2}{3}\) × \(\frac{1}{\frac{1}{3}}\)
= \(\frac{2}{3}\) × \(\frac{3}{1}\)
= \(\frac{2}{3}\) × 3
= \(\frac{6}{3}\)
= 2
Therefore, \(\frac{2}{3}\) ÷ \(\frac{1}{3}\) = \(\frac{2}{3}\) × 3 = 2
Therefore, the rules for the division of a fraction by a fraction is
A Fraction ÷ Another Fraction = First Fraction × Reciprocal of the Second Fraction.
Hence, we conclude that to divide a fractional number by another
fractional number, we multiply the first fractional number by the
multiplicative inverse of the second fraction number.
1. \(\frac{1}{3}\) ÷ \(\frac{2}{5}\)
[First Fraction × Reciprocal of the Second Fraction]
= \(\frac{1}{3}\) × \(\frac{5}{2}\)
= \(\frac{1 × 5}{3 × 2}\)
= \(\frac{5}{6}\)
2. \(\frac{6}{19}\) ÷ \(\frac{12}{38}\)
= \(\frac{6}{19}\) × \(\frac{38}{12}\)
= 1
3. 2\(\frac{1}{7}\) ÷ \(\frac{7}{2}\)
= \(\frac{2 × 7 + 1}{7}\) ÷ \(\frac{7}{2}\)
= \(\frac{15}{7}\) ÷ \(\frac{7}{2}\)
= \(\frac{15}{7}\) × \(\frac{2}{7}\)
= \(\frac{15 × 2}{7 × 7}\)
= \(\frac{30}{49}\)
4. 6 2/3 ÷ 4 1/5
= (6 × 3 + 2)/3 ÷ (4 × 5 + 1)/5
= 20/3 ÷ 21/5
= 20/3 × 5/21
= (20 × 5)/(3 × 21)
= 100/63
5. 12/11 ÷ 144/121
= 12/11 × 121/144
= 11/12
6. 5 1/8 ÷ 8 2/16
= (5 × 8 + 1)/8 ÷ (8 × 16 + 2)/16
= 41/8 ÷ 130/16
= 41/8 × 16/130
= 41/65
● Multiplication is Repeated Addition.
● Multiplication of Fractional Number by a Whole Number.
● Multiplication of a Fraction by Fraction.
● Properties of Multiplication of Fractional Numbers.
● Worksheet on Multiplication on Fraction.
● Division of a Fraction by a Whole Number.
● Division of a Fractional Number.
● Division of a Whole Number by a Fraction.
● Properties of Fractional Division.
● Worksheet on Division of Fractions.
● Simplification of Fractions.
● Worksheet on Simplification of Fractions.
● Worksheet on Word Problems on Fractions.
5th Grade Numbers Page
5th Grade Math Problems
From Division of a Fractional Number to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.
Nov 23, 24 12:22 AM
Nov 22, 24 01:00 AM
Nov 22, 24 12:34 AM
Nov 22, 24 12:12 AM
Nov 20, 24 12:50 AM
New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.