Subtract 20/21 from 2/24
2/24 - 20/21 is -73/84.
Steps for subtracting fractions
- 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,
20/21 = 20 × 8/21 × 8 = 160/168 - Subtract the two like fractions:
14/168 - 160/168 = 14 - 160/168 = -146/168 - After reducing the fraction, the answer is -73/84
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