Question

how to solve 4/5 - 5/7

Answer 1

Hey Mate ⭐✋⭐

Here's ur answer ⤵

Method 1: By Listing Multiples

List out all multiples of each denominator, and find the first common one.

Multiples of 5 : 5, 10, 15, 20, 25, 30, 35, ...

Multiples of 7 : 7, 14, 21, 28, 35, ...

Therefore, the LCD is 3535.

Method 2: By Prime Factors

Since 5,75,7 are prime numbers themselves, we simply multiply them to get the LCD.

Therefore, the LCD is 5\times 7=355×7=35.

LCD = 3535

4×7/5×7- 5×5/7×5

28/35-25/35

28-25/35

Fraction :3/35

Decimal Form: 0.085714

Hope it helps you! ヅ

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