\[\frac{6}{7}-\frac{3}{4}\]

1
Find the Least Common Denominator (LCD) of 67,34\frac{6}{7},\frac{3}{4}. In other words, find the Least Common Multiple (LCM) of 7,47,4.
LCD = 2828

2
Make the denominators the same as the LCD.
6×47×43×74×7\frac{6\times 4}{7\times 4}-\frac{3\times 7}{4\times 7}

3
Simplify. Denominators are now the same.
24282128\frac{24}{28}-\frac{21}{28}

4
Join the denominators.
242128\frac{24-21}{28}

5
Simplify.
328\frac{3}{28}

Done

Decimal Form: 0.107143

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