Add: 5/7 + 9/11 + 21/77

Question

samanyuanil2020 samanyuanil2020

31-07-2022
Mathematics

Answered

Add: 5/7 + 9/11 + 21/77

Answer :

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jo0434 jo0434 · Answer 1 · 2022-07-31T00:47:07-04:00

jo0434 jo0434

31-07-2022

Answer:

Step-by-step explanation:

You want to begin by making each fraction have the same common denominator. The LCF (least common factor) is 77. So, knowing this, we can now multiply the fractions that need to have a denominator of 77.

1. 5/7*11/11=55/77

2. 9/11 * 7/7 =63/77

Now we can add

55/77 + 63/77 + 21/77 = 139/77 or 1.805194805

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