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Convert Given Fraction into a Fraction with Equal Denominator: 4/5, 17/20, 23/40 "And" 11/16 - Mathematics

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Question

Convert given fraction into a fraction with equal denominator: 

`4/5, 17/20, 23/40  "and"  11/16`

Sum

Solution

In `4/5, 17/20, 23/40  "and"  11/16` 
L.C.M of 5, 20, 40 and 16 = 80


`therefore 4/5 = (4 xx 16)/(5 xx 16) = 64/80`


`17/20 = (17 xx 4)/(20 xx 4) = 68/80`


`23/40 = (23 xx 2)/(40 xx 2) = 46/80`


and `11/16 = (11 xx 5)/(16 xx 5) = 55/80`


Hence, the required fractions are `64/80, 68/80, 46/80   "and"  55/80.`

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Concept for Fraction as an Operator
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Chapter 3: Fractions (Including Problems) - Exercise 3 (B)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 3 Fractions (Including Problems)
Exercise 3 (B) | Q 2.3
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