Subtract 18/21 from 2/24, Solve 2/24

Subtract 18/21 from 2/24

2/24 - 18/21 is -65/84.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
2/24 = 2 × 7/24 × 7 = 14/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
18/21 = 18 × 8/21 × 8 = 144/168
Subtract the two like fractions:
14/168 - 144/168 = 14 - 144/168 = -130/168
After reducing the fraction, the answer is -65/84

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